nq2.htm
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY
 
Investment Company Act file number 811-21213
 
Nuveen AMT-Free Municipal Income Fund
(Exact name of registrant as specified in charter)
 
Nuveen Investments
        333 West Wacker Drive, Chicago, Illinois 60606         
(Address of principal executive offices) (Zip code)
 

Kevin J. McCarthy
Vice President and Secretary
        333 West Wacker Drive, Chicago, Illinois 60606         
(Name and address of agent for service)
 
Registrant's telephone number, including area code:         312-917-7700        
 
Date of fiscal year end:            10/31          
 
Date of reporting period:         7/31/15         
 
Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.
 
A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

 
 
 

 
 
Item 1. Schedule of Investments
 
 
   
Portfolio of Investments
     
           
   
Nuveen AMT-Free Municipal Income Fund (NEA)
     
   
July 31, 2015 (Unaudited)
     
 
 
Principal
   
Optional Call
   
Amount (000)
 
Description (1)
Provisions (2)
Ratings (3)
Value
   
LONG-TERM INVESTMENTS – 144.0% (99.2% of Total Investments)
     
           
   
MUNICIPAL BONDS – 144.0% (99.2% of Total Investments)
     
           
   
Alabama – 0.7% (0.5% of Total Investments)
     
$ 1,000
 
Alabama Special Care Facilities Financing Authority, Revenue Bonds, Ascension Health, Series
11/16 at 100.00
AA+
$ 1,047,910
   
2006C-2, 5.000%, 11/15/36 (UB)
     
   
Jefferson County, Alabama, General Obligation Warrants, Series 2004A:
     
1,395
 
5.000%, 4/01/22 – NPFG Insured
10/15 at 100.00
AA–
1,395,419
1,040
 
5.000%, 4/01/23 – NPFG Insured
10/15 at 100.00
AA–
1,040,177
4,900
 
Mobile Spring Hill College Educational Building Authority, Alabama, Revenue Bonds, Spring Hill
4/25 at 100.00
N/R
4,519,809
   
College Project, Series 2015, 5.875%, 4/15/45
     
8,335
 
Total Alabama
   
8,003,315
   
Alaska – 0.2% (0.1% of Total Investments)
     
2,540
 
Northern Tobacco Securitization Corporation, Alaska, Tobacco Settlement Asset-Backed Bonds,
12/15 at 100.00
B
2,182,190
   
Series 2006A, 5.000%, 6/01/32
     
   
Arizona – 3.3% (2.2% of Total Investments)
     
1,460
 
Apache County Industrial Development Authority, Arizona, Pollution Control Revenue Bonds,
3/22 at 100.00
A3
1,570,391
   
Tucson Electric Power Company, Series 20102A, 4.500%, 3/01/30
     
2,455
 
Arizona Health Facilities Authority, Hospital Revenue Bonds, Banner Health Systems, Series
1/22 at 100.00
AA–
2,657,587
   
2012A, 5.000%, 1/01/43
     
   
Arizona State, Certificates of Participation, Series 2010A:
     
2,800
 
5.250%, 10/01/28 – AGM Insured
10/19 at 100.00
AA
3,131,156
3,500
 
5.000%, 10/01/29 – AGM Insured
10/19 at 100.00
AA
3,887,310
7,500
 
Arizona State, State Lottery Revenue Bonds, Series 2010A, 5.000%, 7/01/29 – AGC Insured
1/20 at 100.00
AA
8,432,925
   
Phoenix Civic Improvement Corporation, Arizona, Revenue Bonds, Civic Plaza Expansion Project,
     
   
Series 2005B:
     
6,545
 
5.500%, 7/01/37 – FGIC Insured
No Opt. Call
AA
8,212,208
5,000
 
5.500%, 7/01/40 – FGIC Insured
No Opt. Call
AA
6,286,100
3,530
 
Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Citigroup Energy Inc
No Opt. Call
A–
3,882,223
   
Prepay Contract Obligations, Series 2007, 5.000%, 12/01/37
     
32,790
 
Total Arizona
   
38,059,900
   
California – 16.4% (11.3% of Total Investments)
     
22,880
 
Alameda Corridor Transportation Authority, California, Revenue Bonds, Senior Lien Series
No Opt. Call
AA–
10,994,522
   
1999A, 0.000%, 10/01/32 – NPFG Insured
     
2,735
 
Bay Area Toll Authority, California, Revenue Bonds, San Francisco Bay Area Toll Bridge, Series
4/23 at 100.00
AA–
3,063,528
   
2013S-4, 5.250%, 4/01/53
     
   
Burbank Unified School District, Los Angeles County, California, General Obligation Bonds,
     
   
Series 2015A:
     
2,250
 
0.000%, 8/01/32
2/25 at 100.00
Aa2
1,635,458
1,350
 
0.000%, 8/01/33
2/25 at 100.00
Aa2
975,848
1,300
 
California Educational Facilities Authority, Revenue Bonds, Occidental College, Series 2005A,
10/15 at 100.00
Aa3 (4)
1,310,582
   
5.000%, 10/01/33 (Pre-refunded 10/01/15) – NPFG Insured
     
3,000
 
California Health Facilities Financing Authority, Revenue Bonds, Lucile Salter Packard
8/22 at 100.00
AA
3,274,650
   
Children’s Hospital, Series 2012A, 5.000%, 8/15/51 (UB) (5)
     
530
 
California Health Facilities Financing Authority, Revenue Bonds, Saint Joseph Health System,
7/23 at 100.00
AA–
589,964
   
Series 2013A, 5.000%, 7/01/37
     
1,710
 
California Health Facilities Financing Authority, Revenue Bonds, Scripps Health, Series 2012A,
11/21 at 100.00
AA
1,889,123
   
5.000%, 11/15/40
     
   
California Health Facilities Financing Authority, Revenue Bonds, Stanford Hospitals and
     
   
Clinics, Tender Option Bond Trust 3294:
     
1,285
 
9.368%, 2/15/20 (IF) (5)
No Opt. Call
AA
1,491,988
525
 
9.368%, 2/15/20 (IF) (5)
No Opt. Call
AA
609,567
485
 
9.361%, 2/15/20 (IF) (5)
No Opt. Call
AA
563,051
5,000
 
California State Public Works Board, Lease Revenue Bonds, Department of General Services,
12/15 at 100.00
A+
5,028,850
   
Capital East End Project, Series 2002A, 5.000%, 12/01/27 – AMBAC Insured
     
5
 
California State, General Obligation Bonds, Series 2004, 5.000%, 4/01/31 – AMBAC Insured
10/15 at 100.00
AA–
5,018
10,000
 
California Statewide Communities Development Authority, Revenue Bonds, Sutter Health, Series
8/20 at 100.00
AA–
11,865,996
   
2011A, 6.000%, 8/15/42
     
   
California Statewide Community Development Authority, Revenue Bonds, Daughters of Charity
     
   
Health System, Series 2005A:
     
3,895
 
5.250%, 7/01/30
1/16 at 100.00
CCC
3,499,151
5,000
 
5.250%, 7/01/35
1/16 at 100.00
CCC
4,501,300
5,000
 
5.000%, 7/01/39
1/16 at 100.00
CCC
4,304,500
4,775
 
Clovis Unified School District, Fresno County, California, General Obligation Bonds, Series
No Opt. Call
AA+ (4)
3,718,149
   
2001A, 0.000%, 8/01/25 – NPFG Insured (ETM)
     
1,665
 
Contra Costa Community College District, Contra Costa County, California, General Obligation
8/23 at 100.00
Aa1
1,881,333
   
Bonds, Election of 2006, Series 2013, 5.000%, 8/01/38
     
7,775
 
Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds,
No Opt. Call
AA
3,475,347
   
Refunding Senior Lien Series 2015A, 0.000%, 1/15/34 – AGM Insured
     
   
Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds,
     
   
Refunding Series 2013A:
     
1,510
 
5.750%, 1/15/46
1/24 at 100.00
BBB–
1,742,449
4,510
 
6.000%, 1/15/49
1/24 at 100.00
BBB–
5,285,765
1,735
 
Fullerton Public Financing Authority, California, Tax Allocation Revenue Bonds, Series 2005,
9/15 at 100.00
A
1,738,123
   
5.000%, 9/01/27 – AMBAC Insured
     
   
Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed
     
   
Bonds, Series 2007A-1:
     
8,180
 
4.500%, 6/01/27
6/17 at 100.00
B+
7,818,199
3,990
 
5.000%, 6/01/33
6/17 at 100.00
B
3,346,094
250
 
5.125%, 6/01/47
6/17 at 100.00
B
195,483
3,040
 
Kern Community College District, California, General Obligation Bonds, Safety, Repair &
No Opt. Call
AA
2,426,011
   
Improvement, Election 2002 Series 2006, 0.000%, 11/01/23 – AGM Insured
     
1,295
 
La Verne-Grand Terrace Housing Finance Agency, California, Single Family Residential Mortgage
No Opt. Call
Aaa
1,436,466
   
Revenue Bonds, Series 1984A, 10.250%, 7/01/17 (ETM)
     
4,000
 
Los Angeles Unified School District, California, General Obligation Bonds, Election of 2004,
7/16 at 100.00
Aa2 (4)
4,172,920
   
Series 2006F, 5.000%, 7/01/24 (Pre-refunded 7/01/16) – FGIC Insured
     
3,545
 
Mount San Antonio Community College District, Los Angeles County, California, General
8/35 at 100.00
AA
2,530,917
   
Obligation Bonds, Election of 2008, Series 2013A, 0.000%, 8/01/43
     
3,515
 
Newport Beach, California, Revenue Bonds, Hoag Memorial Hospital Presbyterian, Series 2011A,
12/21 at 100.00
N/R (4)
4,409,075
   
5.875%, 12/01/30 (Pre-refunded 12/01/21)
     
5,000
 
Ontario Redevelopment Financing Authority, San Bernardino County, California, Revenue
No Opt. Call
AA–
6,137,850
   
Refunding Bonds, Redevelopment Project 1, Series 1995, 7.400%, 8/01/25 – NPFG Insured
     
   
Orange County Water District, California, Revenue Certificates of Participation, Series 2003B:
     
1,745
 
5.000%, 8/15/34 – NPFG Insured (ETM)
No Opt. Call
AAA
2,185,647
1,490
 
5.000%, 8/15/34 – NPFG Insured (ETM)
No Opt. Call
Aa1 (4)
1,861,159
6,415
 
Pomona, California, GNMA/FHLMC Collateralized Single Family Mortgage Revenue Refunding Bonds,
No Opt. Call
Aaa
7,937,280
   
Series 1990B, 7.500%, 8/01/23 (ETM)
     
1,800
 
Rialto Unified School District, San Bernardino County, California, General Obligation Bonds,
No Opt. Call
AA
1,122,606
   
Series 2011A, 0.000%, 8/01/28
     
1,000
 
Rim of the World Unified School District, San Bernardino County, California, General
8/21 at 100.00
AA
1,088,450
   
Obligation Bonds, Series 2011C, 5.000%, 8/01/38 – AGM Insured
     
390
 
Riverside County Transportation Commission, California, Toll Revenue Senior Lien Bonds, Series
6/23 at 100.00
BBB–
441,367
   
2013A, 5.750%, 6/01/44
     
735
 
Sacramento City Financing Authority, California, Capital Improvement Revenue Bonds, Solid
12/15 at 100.00
N/R
736,676
   
Waste and Redevelopment Projects, Series 1999, 5.800%, 12/01/19 – AMBAC Insured
     
6,335
 
San Bernardino, California, GNMA Mortgage-Backed Securities Program Single Family Mortgage
No Opt. Call
Aaa
7,853,436
   
Revenue Refunding Bonds, Series 1990A, 7.500%, 5/01/23 (ETM) (5)
     
2,250
 
San Buenaventura, California, Revenue Bonds, Community Memorial Health System, Series 2011,
12/21 at 100.00
BB
2,735,010
   
7.500%, 12/01/41
     
4,000
 
San Francisco Airports Commission, California, Revenue Bonds, San Francisco International
5/23 at 100.00
A+
4,432,600
   
Airport, Governmental Purpose, Second Series 2013B, 5.000%, 5/01/43
     
   
San Joaquin Hills Transportation Corridor Agency, Orange County, California, Toll Road Revenue
     
   
Bonds, Refunding Senior Lien Series 2014A:
     
6,575
 
5.000%, 1/15/44
1/25 at 100.00
BBB–
6,971,341
20,310
 
5.000%, 1/15/50
1/25 at 100.00
BBB–
21,314,529
4,000
 
San Jose Redevelopment Agency, California, Tax Allocation Bonds, Merged Area Redevelopment
8/15 at 100.00
AA–
4,016,560
   
Project, Series 2004A, 5.250%, 8/01/19 – NPFG Insured
     
12,580
 
San Jose Redevelopment Agency, California, Tax Allocation Bonds, Merged Area Redevelopment
8/17 at 100.00
AA–
12,853,615
   
Project, Series 2006C, 4.250%, 8/01/30 – NPFG Insured
     
4,455
 
San Mateo County Community College District, California, General Obligation Bonds, Series
No Opt. Call
AAA
3,976,845
   
2006A, 0.000%, 9/01/21 – NPFG Insured
     
3,900
 
West Hills Community College District, California, General Obligation Bonds, School Facilities
8/21 at 100.00
AA
4,793,295
   
Improvement District 3, 2008 Election Series 2011, 6.500%, 8/01/41 – AGM Insured
     
199,715
 
Total California
   
190,237,693
   
Colorado – 5.0% (3.4% of Total Investments)
     
7,500
 
Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives,
4/18 at 100.00
AA
8,892,225
   
Series 2006C-1, Trust 1090, 15.042%, 10/01/41 – AGM Insured (IF) (5)
     
5,000
 
Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives,
1/23 at 100.00
A+
5,425,900
   
Series 2013A, 5.250%, 1/01/45
     
5,000
 
Colorado Health Facilities Authority, Colorado, Revenue Bonds, Children’s Hospital Colorado
12/23 at 100.00
A+
5,437,900
   
Project, Series 2013A, 5.000%, 12/01/36
     
425
 
Colorado Health Facilities Authority, Colorado, Revenue Bonds, Evangelical Lutheran Good
6/23 at 100.00
BBB+
469,672
   
Samaritan Society Project, Series 2013, 5.625%, 6/01/43
     
2,915
 
Commerce City Northern Infrastructure General Improvement District, Colorado, General
12/22 at 100.00
AA
3,379,680
   
Obligation Bonds, Series 2013, 5.000%, 12/01/27 – AGM Insured
     
4,835
 
Denver City and County, Colorado, Airport System Revenue Bonds, Subordinate Lien Series 2013B,
11/23 at 100.00
A
5,338,033
   
5.000%, 11/15/43
     
   
E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2000B:
     
35,395
 
0.000%, 9/01/30 – NPFG Insured
No Opt. Call
AA–
19,927,739
70
 
0.000%, 9/01/33 – NPFG Insured
No Opt. Call
AA–
33,632
2,900
 
E-470 Public Highway Authority, Colorado, Toll Revenue Bonds, Series 2004A, 0.000%,
No Opt. Call
AA–
1,318,079
   
9/01/34 – NPFG Insured
     
2,640
 
Park Creek Metropolitan District, Colorado, Senior Limited Property Tax Supported Revenue
12/20 at 100.00
AA
3,115,174
   
Refunding Bonds, Series 2011, 6.125%, 12/01/41 – AGM Insured
     
4,000
 
University of Colorado Hospital Authority, Colorado, Revenue Bonds, Series 2012A,
11/22 at 100.00
AA–
4,325,360
   
5.000%, 11/15/42
     
70,680
 
Total Colorado
   
57,663,394
   
Delaware – 0.3% (0.2% of Total Investments)
     
3,250
 
Delaware Health Facilities Authority, Revenue Bonds, Nanticoke Memorial Hospital, Series 2013,
7/23 at 100.00
BBB–
3,407,853
   
5.000%, 7/01/32
     
   
District of Columbia – 2.0% (1.4% of Total Investments)
     
1,250
 
District of Columbia Student Dormitory Revenue Bonds, Provident Group – Howard Properties LLC
10/22 at 100.00
BB+
1,188,350
   
Issue, Series 2013, 5.000%, 10/01/45
     
10,150
 
District of Columbia, Revenue Bonds, Georgetown University, Series 2007A, 0.000%, 4/01/40 –
4/21 at 100.00
A–
9,328,155
   
AMBAC Insured
     
7,425
 
Metropolitan Washington Airports Authority, District of Columbia, Dulles Toll Road Revenue
4/22 at 100.00
BBB+
7,704,551
   
Bonds, Dulles Metrorail & Capital Improvement Project, Refunding Second Senior Lien Series
     
   
2014A, 5.000%, 10/01/53
     
7,000
 
Metropolitan Washington Airports Authority, District of Columbia, Dulles Toll Road Second
No Opt. Call
AA
2,721,320
   
Senior Lien Revenue Bonds, Series 2009B, 0.000%, 10/01/36 – AGC Insured
     
2,395
 
Washington Convention Center Authority, District of Columbia, Dedicated Tax Revenue Bonds,
10/16 at 100.00
AA+
2,667,623
   
Tender Option Bond Trust 1606, 11.856%, 10/01/30 – AMBAC Insured (IF) (5)
     
28,220
 
Total District of Columbia
   
23,609,999
   
Florida – 10.5% (7.3% of Total Investments)
     
1,000
 
Bay County, Florida, Water System Revenue Bonds, Series 2005, 5.000%, 9/01/25 – AMBAC Insured
9/15 at 100.00
Aa3
1,004,000
11,000
 
Cape Coral, Florida, Water and Sewer Revenue Bonds, Refunding Series 2011, 5.000%,
10/21 at 100.00
AA
12,252,020
   
10/01/41 – AGM Insured
     
2,830
 
City of Miami Beach, Florida, Stormwater Revenue Bonds, Series 2015, 5.000%, 9/01/41
9/25 at 100.00
AA–
3,147,271
   
(WI/DD, Settling 8/05/15)
     
   
Clay County, Florida, Utility System Revenue Bonds, Series 2007:
     
1,500
 
5.000%, 11/01/27 (Pre-refunded 11/01/17) – AGM Insured (UB)
11/17 at 100.00
AA (4)
1,640,100
3,000
 
5.000%, 11/01/32 (Pre-refunded 11/01/17) – AGM Insured (UB)
11/17 at 100.00
AA (4)
3,280,200
3,570
 
Collier County Educational Facilities Authority, Florida, Revenue Bonds, Hodges University,
11/23 at 100.00
BBB–
3,951,633
   
Series 2013, 6.125%, 11/01/43
     
   
Davie, Florida, Educational Facilities Revenue Bonds, Nova Southeastern University Project,
     
   
Refunding Series 2013A:
     
8,555
 
6.000%, 4/01/42
4/23 at 100.00
Baa1
9,771,692
4,280
 
5.625%, 4/01/43
4/23 at 100.00
Baa1
4,767,963
500
 
Flagler County, Florida, Capital Improvement Revenue Bonds, Series 2005, 5.000%, 10/01/30
10/15 at 100.00
AA– (4)
504,065
   
(Pre-refunded 10/01/15) – NPFG Insured
     
1,190
 
Florida Municipal Loan Council, Revenue Bonds, Series 2005A, 5.000%, 2/01/23
No Opt. Call
AA–
1,194,260
2,500
 
Florida State Board of Education, Public Education Capital Outlay Bonds, Tender Option Bond
No Opt. Call
AAA
3,549,200
   
Trust 2929, 17.529%, 12/01/16 – AGC Insured (IF) (5)
     
5,000
 
Florida State Turnpike Authority, Turnpike Revenue Bonds, Department of Transportation,
No Opt. Call
AA–
5,374,500
   
Refunding Series 2008A, 5.000%, 7/01/35
     
350
 
Halifax Hospital Medical Center, Daytona Beach, Florida, Hospital Revenue Bonds, Series 2006,
6/18 at 100.00
AA
379,635
   
5.500%, 6/01/38 – AGM Insured
     
180
 
Highlands County Health Facilities Authority, Florida, Hospital Revenue Bonds, Adventist
11/15 at 100.00
Aa2 (4)
182,509
   
Health System, Series 2005D, 5.000%, 11/15/35 (Pre-refunded 11/15/15) – NPFG Insured
     
   
Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport,
     
   
Subordinate Lien Series 2015B:
     
5,730
 
5.000%, 10/01/40 (WI/DD, Settling 8/13/15)
10/24 at 100.00
A+
6,337,208
7,155
 
5.000%, 10/01/44 (WI/DD, Settling 8/13/15)
10/24 at 100.00
A+
7,872,146
400
 
Jacksonville, Florida, Better Jacksonville Sales Tax Revenue Bonds, Refunding Series 2012,
10/22 at 100.00
A1
453,160
   
5.000%, 10/01/30
     
1,530
 
Lakeland, Florida, Hospital System Revenue Bonds, Lakeland Regional Health, Refunding Series
11/21 at 100.00
A2
1,703,670
   
2011, 5.000%, 11/15/24
     
500
 
Lee Memorial Health System, Florida, Hospital Revenue Bonds, Series 2007A, 5.000%,
4/17 at 100.00
AA–
520,680
   
4/01/32 – NPFG Insured
     
1,200
 
Miami, Florida, Special Obligation Non-Ad Valorem Revenue Refunding Bonds, Series 2011A,
2/21 at 100.00
AA
1,427,064
   
6.000%, 2/01/30 – AGM Insured
     
10,000
 
Miami-Dade County Expressway Authority, Florida, Toll System Revenue Bonds, Series 2010A,
7/20 at 100.00
AA
11,168,298
   
5.000%, 7/01/35
     
6,350
 
Miami-Dade County School Board, Florida, Certificates of Participation, Series 2006A, 5.000%,
11/16 at 100.00
AA+ (4)
6,708,648
   
11/01/31 (Pre-refunded 11/01/16) – AGM Insured
     
4,000
 
Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Series 2010B,
10/20 at 100.00
AA
4,471,240
   
5.000%, 10/01/35 – AGM Insured
     
1,850
 
Miami-Dade County, Florida, Subordinate Special Obligation Bonds, Refunding Series 2012B,
10/22 at 100.00
A+
2,020,792
   
5.000%, 10/01/37
     
2,000
 
Miami-Dade County, Florida, Transit System Sales Surtax Revenue Bonds, Refunding Series 2012,
7/22 at 100.00
AA
2,206,080
   
5.000%, 7/01/42
     
5,770
 
Miami-Dade County, Florida, Water and Sewer System Revenue Bonds, Series 2013A,
10/22 at 100.00
Aa3
6,364,137
   
5.000%, 10/01/42
     
750
 
Orange County Health Facilities Authority, Florida, Hospital Revenue Bonds, Orlando Health,
4/22 at 100.00
A
785,198
   
Inc., Series 2012A, 5.000%, 10/01/42
     
140
 
Palm Beach County Health Facilities Authority, Florida, Revenue Bonds, Sinai Residences of
6/22 at 102.00
N/R
159,330
   
Boca Raton Project, Series 2014A, 7.250%, 6/01/34
     
895
 
Port Saint Lucie, Florida, Special Assessment Revenue Bonds, Southwest Annexation District 1B,
7/17 at 100.00
AA–
954,929
   
Series 2007, 5.000%, 7/01/33 – NPFG Insured
     
480
 
Port St. Lucie, Florida, Utility System Revenue Bonds, Refunding Series 2009, 5.250%,
9/18 at 100.00
AA
530,558
   
9/01/35 – AGC Insured
     
2,000
 
Tallahassee, Florida, Energy System Revenue Bonds, Series 2005, 5.000%, 10/01/28 (Pre-refunded
10/15 at 100.00
AA (4)
2,016,160
   
10/01/15) – NPFG Insured
     
1,200
 
Tamarac, Florida, Utility System Revenue Bonds, Series 2009, 5.000%, 10/01/39 – AGC Insured
10/19 at 100.00
AA
1,341,672
9,720
 
Tampa-Hillsborough County Expressway Authority, Florida, Revenue Bonds, Refunding Series
No Opt. Call
A
10,646,024
   
2012B, 5.000%, 7/01/42
     
1,500
 
Volusia County Educational Facilities Authority, Florida, Revenue Bonds, Embry-Riddle
10/21 at 100.00
AA
1,665,060
   
Aeronautical University, Inc. Project, Refunding Series 2011, 5.000%, 10/15/29 – AGM Insured
     
2,000
 
Volusia County Educational Facilities Authority, Florida, Revenue Bonds, Embry-Riddle
4/25 at 100.00
A–
2,152,780
   
Aeronautical University, Series 2015B, 5.000%, 10/15/45
     
110,625
 
Total Florida
   
122,503,882
   
Georgia – 3.0% (2.1% of Total Investments)
     
6,950
 
Atlanta, Georgia, Airport General Revenue Bonds, Refunding Series 2010A, 5.000%,
1/20 at 100.00
AA
7,773,992
   
1/01/40 – AGM Insured
     
3,050
 
Atlanta, Georgia, Water and Wastewater Revenue Bonds, Series 2009B, 5.375%,
11/19 at 100.00
AA
3,458,182
   
11/01/39 – AGM Insured
     
1,535
 
Cherokee County Water and Sewerage Authority, Georgia, Revenue Bonds, Refunding Series 2007,
8/20 at 100.00
AA
1,631,383
   
4.000%, 8/01/26
     
4,000
 
Cobb County Development Authority, Georgia, Parking Revenue Bonds, Kennesaw State University,
9/15 at 100.00
A1 (4)
4,016,040
   
Series 2004, 5.000%, 7/15/24 (Pre-refunded 9/02/15) – NPFG Insured
     
1,410
 
DeKalb County, Georgia, Water and Sewer Revenue Bonds, Series 2006A, 5.000%,
10/16 at 100.00
AA
1,477,553
   
10/01/35 – AGM Insured
     
3,055
 
Gwinnett County School District, Georgia, General Obligation Bonds, Series 2008, 5.000%,
2/18 at 100.00
AAA
3,373,911
   
2/01/36 (Pre-refunded 2/01/18)
     
1,350
 
Henry County Water and Sewerage Authority, Georgia, Revenue Bonds, Series 2005, 5.250%,
No Opt. Call
AA+
1,680,048
   
2/01/27 – BHAC Insured
     
8,230
 
Private Colleges and Universities Authority, Georgia, Revenue Bonds, Mercer University, Series
10/25 at 100.00
Baa2
8,713,842
   
2015, 5.000%, 10/01/40
     
2,615
 
Valdosta and Lowndes County Hospital Authority, Georgia, Revenue Certificates, South Georgia
10/21 at 100.00
Aa2
2,864,157
   
Medical Center Project, Series 2011B, 5.000%, 10/01/41
     
32,195
 
Total Georgia
   
34,989,108
   
Guam – 0.2% (0.1% of Total Investments)
     
2,030
 
Guam Waterworks Authority, Water and Wastewater System Revenue Bonds, Series 2013,
7/23 at 100.00
A–
2,298,062
   
5.500%, 7/01/43
     
   
Hawaii – 0.0% (0.0% of Total Investments)
     
125
 
Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaii Pacific
7/23 at 100.00
BB+
141,098
   
University, Series 2013A, 6.875%, 7/01/43
     
   
Idaho – 0.2% (0.1% of Total Investments)
     
2,110
 
Idaho Health Facilities Authority, Revenue Bonds, Saint Luke’s Health System Project, Series
3/22 at 100.00
A–
2,264,980
   
2012A, 5.000%, 3/01/47 – AGM Insured
     
   
Illinois – 15.1% (10.4% of Total Investments)
     
4,000
 
Bolingbrook, Illinois, General Obligation Refunding Bonds, Series 2002B, 0.000%,
No Opt. Call
AA–
1,773,640
   
1/01/34 – FGIC Insured
     
3,500
 
Chicago Transit Authority, Illinois, Capital Grant Receipts Revenue Bonds, Federal Transit
6/21 at 100.00
AA
3,796,135
   
Administration Section 5307 Urbanized Area Formula Funds, Refunding Series 2011, 5.250%,
     
   
6/01/26 – AGM Insured
     
9,285
 
Chicago Transit Authority, Illinois, Sales Tax Receipts Revenue Bonds, Series 2014,
No Opt. Call
AA
9,876,362
   
5.250%, 12/01/49
     
13,100
 
Chicago, Illinois, General Airport Revenue Bonds, O’Hare International Airport, Third Lien
1/20 at 100.00
AA
14,655,492
   
Refunding Series 2010C, 5.250%, 1/01/35 – AGC Insured
     
1,450
 
Chicago, Illinois, General Airport Revenue Bonds, O’Hare International Airport, Third Lien
1/16 at 100.00
AA–
1,477,202
   
Series 2005A, 5.250%, 1/01/24 – NPFG Insured
     
4,735
 
Cook County Community College District 508, Illinois, General Obligation Bonds, Chicago City
12/23 at 100.00
AA
5,264,136
   
Colleges, Series 2013, 5.250%, 12/01/43
     
10,040
 
Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2015A,
7/25 at 100.00
AA–
11,141,288
   
5.000%, 1/01/40
     
13,720
 
Illinois Development Finance Authority, Local Government Program Revenue Bonds, Kane, Cook and
No Opt. Call
Aa3
13,394,013
   
DuPage Counties School District U46 – Elgin, Series 2002, 0.000%, 1/01/17 – AGM Insured
     
8,140
 
Illinois Development Finance Authority, Local Government Program Revenue Bonds, Kane, Cook and
No Opt. Call
Aa3 (4)
8,066,089
   
DuPage Counties School District U46 – Elgin, Series 2002, 0.000%, 1/01/17 – AGM Insured (ETM)
     
2,050
 
Illinois Educational Facilities Authority, Revenue Bonds, Field Museum of Natural History,
11/23 at 100.00
A2
2,237,042
   
Series 2002, 5.500%, 11/01/36
     
5,020
 
Illinois Finance Authority, Revenue Bonds, Advocate Health Care Network, Series 2012,
No Opt. Call
AA
5,426,369
   
5.000%, 6/01/42
     
4,200
 
Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2012, 5.000%, 9/01/38
9/22 at 100.00
BBB
4,376,442
10,030
 
Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2014A,
9/24 at 100.00
BBB
10,495,392
   
5.000%, 9/01/42
     
2,910
 
Illinois Finance Authority, Revenue Bonds, Ingalls Health System, Series 2013, 5.000%, 5/15/43
5/22 at 100.00
Baa1
3,007,019
1,145
 
Illinois Finance Authority, Revenue Bonds, Rehabilitation Institute of Chicago, Series 2013A,
7/23 at 100.00
A–
1,343,566
   
6.000%, 7/01/43
     
3,560
 
Illinois Finance Authority, Revenue Bonds, The Carle Foundation, Series 2011A, 6.000%,
8/21 at 100.00
AA
4,195,353
   
8/15/41 – AGM Insured
     
1,000
 
Illinois Finance Authority, Revenue Bonds, The University of Chicago Medical Center, Series
2/21 at 100.00
AA–
1,114,810
   
2011C, 5.500%, 8/15/41
     
9,510
 
Illinois Finance Authority, Revenue Bonds, University of Chicago, Series 2012A,
10/21 at 100.00
AA+
10,135,663
   
5.000%, 10/01/51
     
3,895
 
Illinois Health Facilities Authority, Revenue Bonds, Lutheran General Health System, Series
No Opt. Call
AA (4)
4,241,772
   
1993A, 6.250%, 4/01/18 – AGM Insured (ETM)
     
6,500
 
Illinois Municipal Electric Agency, Power Supply System Revenue Bonds, Series 2007A, 5.000%,
2/17 at 100.00
AA– (4)
6,931,600
   
2/01/35 (Pre-refunded 2/01/17) – FGIC Insured
     
   
Illinois State, General Obligation Bonds, May Series 2014:
     
1,700
 
5.000%, 5/01/36
5/24 at 100.00
A–
1,721,505
5,420
 
5.000%, 5/01/39
5/24 at 100.00
A–
5,453,929
   
Illinois State, General Obligation Bonds, Series 2012A:
     
2,500
 
5.000%, 3/01/25
3/22 at 100.00
A–
2,633,800
4,500
 
5.000%, 3/01/27
3/22 at 100.00
A–
4,681,485
1,125
 
Illinois State, General Obligation Bonds, Series 2013, 5.500%, 7/01/38
7/23 at 100.00
A–
1,193,805
5,000
 
Macon County School District 61 Decatur, Illinois, General Obligation Bonds, Series 2011A,
1/21 at 100.00
A2
5,472,050
   
5.250%, 1/01/39 – AGM Insured
     
5,000
 
Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project
6/22 at 100.00
BBB+
5,157,750
   
Refunding Bonds, Series 2012B, 5.000%, 6/15/52 (UB) (5)
     
   
Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion
     
   
Project, Capital Appreciation Refunding Series 2010B-1:
     
33,000
 
0.000%, 6/15/45 – AGM Insured
No Opt. Call
AA
7,449,420
5,000
 
0.000%, 6/15/46 – AGM Insured
No Opt. Call
AA
1,070,650
5,725
 
Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion
6/22 at 101.00
AA–
5,946,787
   
Project, Series 2002A, 0.000%, 6/15/27 – NPFG Insured
     
5,010
 
Metropolitan Pier and Exposition Authority, Illinois, Revenue Refunding Bonds, McCormick Place
No Opt. Call
AA–
4,161,506
   
Expansion Project, Series 1996A, 0.000%, 12/15/21 – NPFG Insured
     
4,125
 
Southwestern Illinois Development Authority, Health Facility Revenue Bonds, Memorial Group, Inc.,
11/23 at 100.00
BB+
5,123,910
   
Series 2013, 7.625%, 11/01/48
     
1,895
 
Williamson & Johnson Counties Community Unit School District 2, Marion, Illinois, General
12/20 at 100.00
AA
2,287,436
   
Obligation Bonds, Series 2011, 7.250%, 12/01/28 – AGM Insured
     
197,790
 
Total Illinois
   
175,303,418
   
Indiana – 4.5% (3.1% of Total Investments)
     
4,725
 
Indiana Finance Authority, Hospital Revenue Bonds, Community Health Network Project, Series
5/23 at 100.00
A
5,064,586
   
2012A, 5.000%, 5/01/42
     
1,500
 
Indiana Finance Authority, Midwestern Disaster Relief Revenue Bonds, Ohio Valley Electric
6/22 at 100.00
BBB–
1,587,450
   
Corporation Project, Series 2012A, 5.000%, 6/01/39 – AGM Insured
     
10,000
 
Indiana Finance Authority, Revenue Bonds, Trinity Health Care Group, Refunding Series 2009A,
12/19 at 100.00
AA
11,196,600
   
5.250%, 12/01/38 (UB)
     
5,000
 
Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, Series
10/21 at 100.00
AA–
5,467,650
   
2011B, 5.000%, 10/01/41
     
3,075
 
Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, Series
10/22 at 100.00
AA
3,397,814
   
2012A, 5.000%, 10/01/37
     
8,310
 
Indiana Municipal Power Agency, Power Supply Revenue Bonds, Series 2007A, 5.000%, 1/01/42 –
1/17 at 100.00
AA–
8,684,947
   
NPFG Insured
     
9,255
 
Indianapolis Local Public Improvement Bond Bank, Indiana, Series 1999E, 0.000%, 2/01/25 –
No Opt. Call
AA
6,943,656
   
AMBAC Insured
     
   
Indianapolis Local Public Improvement Bond Bank, Indiana, Waterworks Project Series 2009A:
     
3,000
 
5.500%, 1/01/38 – AGC Insured
1/19 at 100.00
AA
3,381,060
5,000
 
5.500%, 1/01/38 – AGC Insured (UB)
1/19 at 100.00
AA
5,635,100
500
 
Vigo County Hospital Authority, Indiana, Revenue Bonds, Union Hospital, Series 2007,
9/17 at 100.00
N/R
519,625
   
5.800%, 9/01/47
     
50,365
 
Total Indiana
   
51,878,488
   
Iowa – 1.5% (1.0% of Total Investments)
     
4,000
 
Ames, Iowa, Hospital Revenue Bonds, Mary Greeley Medical Center, Series 2011, 5.250%, 6/15/36
6/20 at 100.00
A2
4,309,960
425
 
Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company
12/23 at 100.00
BB–
463,348
   
Project, Series 2013, 5.250%, 12/01/25
     
   
Iowa Tobacco Settlement Authority, Asset Backed Settlement Revenue Bonds, Series 2005C:
     
7,125
 
5.375%, 6/01/38
12/15 at 100.00
B+
6,162,199
185
 
5.625%, 6/01/46
12/15 at 100.00
B+
162,437
6,600
 
Iowa Tobacco Settlement Authority, Tobacco Asset-Backed Revenue Bonds, Series 2005B,
6/17 at 100.00
B+
6,232,842
   
5.600%, 6/01/34
     
18,335
 
Total Iowa
   
17,330,786
   
Kansas – 0.2% (0.2% of Total Investments)
     
630
 
Kansas Development Finance Authority, Board of Regents, Revenue Bonds, Scientific Research and
4/16 at 100.50
AA–
638,852
   
Development Facilities Projects, Series 2003C, 5.000%, 10/01/22 – AMBAC Insured
     
2,000
 
Kansas Development Finance Authority, Health Facilities Revenue Bonds, Stormont-Vail Health
11/22 at 100.00
A2
2,154,740
   
Care Inc., Series 2013J, 5.000%, 11/15/38
     
2,630
 
Total Kansas
   
2,793,592
   
Kentucky – 1.3% (0.9% of Total Investments)
     
6,010
 
Kentucky Economic Development Finance Authority, Health System Revenue Bonds, Norton
No Opt. Call
AA–
3,556,357
   
Healthcare Inc., Series 2000B, 0.000%, 10/01/28 – NPFG Insured
     
1,100
 
Kentucky Municipal Power Agency, Power System Revenue Bonds, Prairie State Project Series
9/17 at 100.00
AA– (4)
1,199,110
   
2007A, 5.000%, 9/01/37 (Pre-refunded 9/01/17) – NPFG Insured
     
3,900
 
Kentucky Municipal Power Agency, Power System Revenue Bonds, Prairie State Project Series
9/17 at 100.00
AA–
4,139,148
   
2007A, 5.000%, 9/01/37 – NPFG Insured
     
   
Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds,
     
   
Downtown Crossing Project, Convertible Capital Appreciation Series 2013C:
     
2,575
 
0.000%, 7/01/43
7/31 at 100.00
Baa3
1,796,269
4,430
 
0.000%, 7/01/46
7/31 at 100.00
Baa3
3,089,526
   
Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds,
     
   
Downtown Crossing Project, Series 2013A:
     
1,150
 
5.750%, 7/01/49
7/23 at 100.00
Baa3
1,287,230
220
 
6.000%, 7/01/53
7/23 at 100.00
Baa3
250,210
19,385
 
Total Kentucky
   
15,317,850
   
Louisiana – 5.8% (4.0% of Total Investments)
     
4,690
 
Ascension Parish Industrial development Board, Louisiana, Revenue Bonds, Impala Warehousing
7/23 at 100.00
N/R
5,144,180
   
(US) LLC Project, Series 2013, 6.000%, 7/01/36
     
670
 
Jefferson Parish Hospital District1, Louisiana, Hospital Revenue Bonds, West Jefferson Medical
1/21 at 100.00
AA
779,237
   
Center, Refunding Series 2011A, 6.000%, 1/01/39 – AGM Insured
     
5,000
 
Lafayette Public Trust Financing Authority, Louisiana, Revenue Bonds, Ragin’ Cajun Facilities
10/20 at 100.00
AA
5,703,050
   
Inc. Project, Series 2010, 5.500%, 10/01/41 – AGM Insured
     
6,870
 
Louisiana Stadium and Exposition District, Revenue Refunding Bonds, Senior Lien Series 2013A,
7/23 at 100.00
A
7,552,054
   
5.000%, 7/01/36
     
2,000
 
Louisiana State, Gasoline and Fuels Tax Revenue Bonds, Second Lien Series 2010B,
5/20 at 100.00
AA
2,251,220
   
5.000%, 5/01/45
     
9,000
 
Louisiana State, Gasoline and Fuels Tax Revenue Bonds, Series 2006A, 5.000%, 5/01/36
5/16 at 100.00
Aa1 (4)
9,319,950
   
(Pre-refunded 5/01/16) – AGM Insured
     
   
Louisiana State, Gasoline and Fuels Tax Revenue Bonds, Series 2006A:
     
8,480
 
4.750%, 5/01/39 (Pre-refunded 5/01/16) – AGM Insured
5/16 at 100.00
Aa1 (4)
8,765,606
14,265
 
4.500%, 5/01/41 (Pre-refunded 5/01/16) – NPFG Insured (UB)
5/16 at 100.00
Aa1 (4)
14,718,770
12,000
 
New Orleans Aviation Board, Louisiana, Revenue Bonds, North Terminal Project, Series 2015A,
1/25 at 100.00
A–
13,130,640
   
5.000%, 1/01/45
     
62,975
 
Total Louisiana
   
67,364,707
   
Maine – 0.1% (0.1% of Total Investments)
     
1,010
 
Maine Health and Higher Educational Facilities Authority Revenue Bonds, Eastern Maine Medical
7/23 at 100.00
BBB
1,056,632
   
Center Obligated Group Issue, Series 2013, 5.000%, 7/01/43
     
   
Maryland – 0.3% (0.2% of Total Investments)
     
1,865
 
Baltimore, Maryland, Senior Lien Convention Center Hotel Revenue Bonds, Series 2006A, 5.250%,
9/16 at 100.00
Ba1
1,902,934
   
9/01/26 – SYNCORA GTY Insured
     
1,200
 
Maryland Economic Development Corporation, Student Housing Revenue Refunding Bonds, University
6/16 at 100.00
AA
1,235,316
   
of Maryland College Park Projects, Series 2006, 5.000%, 6/01/28 – CIFG Insured
     
3,065
 
Total Maryland
   
3,138,250
   
Massachusetts – 4.1% (2.8% of Total Investments)
     
5,500
 
Massachusetts Department of Transportation, Metropolitan Highway System Revenue Bonds,
1/20 at 100.00
AA+
6,199,050
   
Commonwealth Contract Assistance Secured, Refunding Series 2010B, 5.000%, 1/01/35
     
1,430
 
Massachusetts Development Finance Agency, Resource Recovery Revenue Refunding Bonds, Covanta
11/17 at 100.00
BB+
1,447,174
   
Energy Project, Series 2012B, 4.875%, 11/01/42
     
   
Massachusetts Development Finance Agency, Revenue Bonds, Emerson College, Series 2015:
     
8,800
 
5.000%, 1/01/45
1/25 at 100.00
BBB+
9,265,608
2,070
 
4.500%, 1/01/45
1/25 at 100.00
BBB+
2,043,318
3,000
 
Massachusetts Development Finance Authority, Revenue Bonds, WGBH Educational Foundation,
No Opt. Call
A
3,619,740
   
Series 2002A, 5.750%, 1/01/42 – AMBAC Insured
     
3,335
 
Massachusetts Health and Education Facilities Authority, Revenue Bonds, Partners HealthCare
7/19 at 100.00
AA
4,558,612
   
System, Tender Option Trust 2015-XF0047, 13.524%, 7/01/29 (IF)
     
3,250
 
Massachusetts School Building Authority, Dedicated Sales Tax Revenue Bonds, Series 2007A,
8/17 at 100.00
AA+
3,482,603
   
5.000%, 8/15/37 – AMBAC Insured
     
7,500
 
Massachusetts School Building Authority, Dedicated Sales Tax Revenue Bonds, Tender Option Bond
No Opt. Call
AA+
10,444,200
   
Trust 14021, 9.518%, 2/15/20 (IF)
     
3,335
 
Massachusetts School Building Authority, Dedicated Sales Tax Revenue Bonds, Tender Option Bond
8/17 at 100.00
AA+
4,025,578
   
Trust 3091, 13.780%, 8/15/37 – AGM Insured (IF)
     
1,725
 
Massachusetts Water Resources Authority, General Revenue Bonds, Series 2007A, 4.500%,
2/17 at 100.00
AA+
1,754,153
   
8/01/46 – AGM Insured (UB) (5)
     
500
 
Springfield Water and Sewer Commission, Massachusetts, General Revenue Bonds, Refunding Series
11/20 at 100.00
AA
572,990
   
2010B, 5.000%, 11/15/30 – AGC Insured
     
40,445
 
Total Massachusetts
   
47,413,026
   
Michigan – 1.4% (1.0% of Total Investments)
     
1,220
 
Detroit Water and Sewerage Department, Michigan, Sewage Disposal System Revenue Bonds,
7/22 at 100.00
BBB+
1,302,948
   
Refunding Senior Lien Series 2012A, 5.250%, 7/01/39
     
10,000
 
Detroit, Michigan, Water Supply System Revenue Bonds, Senior Lien Series 2011A, 5.250%, 7/01/41
7/21 at 100.00
BBB+
10,534,000
1,315
 
Michigan Public Power Agency, AFEC Project Revenue Bonds, Series 2012A, 5.000%, 1/01/43
1/22 at 100.00
A2
1,392,546
820
 
Michigan State Hospital Finance Authority, Revenue Bonds, Trinity Health Care Group, Series
12/16 at 100.00
AA
862,197
   
2006A, 5.000%, 12/01/31
     
180
 
Michigan State Hospital Finance Authority, Revenue Bonds, Trinity Health Care Group, Series
12/16 at 100.00
Aa2 (4)
190,764
   
2006A, 5.000%, 12/01/31 (Pre-refunded 12/01/16)
     
2,000
 
Michigan State Hospital Finance Authority, Revenue Bonds, Trinity Health Care Group, Series
6/22 at 100.00
AA
2,138,520
   
2009C, 5.000%, 12/01/48
     
15,535
 
Total Michigan
   
16,420,975
   
Minnesota – 0.4% (0.3% of Total Investments)
     
   
St. Paul Housing and Redevelopment Authority, Minnesota, Hospital Revenue Bonds, HealthEast
     
   
Inc., Series 2015:
     
285
 
5.250%, 11/15/35
11/20 at 100.00
BBB–
300,493
2,095
 
5.000%, 11/15/40
11/25 at 100.00
BBB–
2,218,458
2,230
 
5.000%, 11/15/44
11/25 at 100.00
BBB–
2,355,705
4,610
 
Total Minnesota
   
4,874,656
   
Missouri – 0.7% (0.5% of Total Investments)
     
1,000
 
Jackson County Reorganized School District R-7, Lees Summit, Missouri, General Obligation
3/16 at 100.00
Aa1 (4)
1,027,860
   
Bonds, Series 2006, 5.250%, 3/01/25 (Pre-refunded 3/01/16) – NPFG Insured
     
6,165
 
Missouri Health and Educational Facilities Authority, Educational Facilities Revenue Bonds,
5/23 at 100.00
BBB+
6,698,581
   
Saint Louis College of Pharmacy, Series 2013, 5.500%, 5/01/43
     
220
 
St. Louis County Industrial Development Authority, Missouri, Revenue Bonds, Friendship Village
9/23 at 100.00
A–
245,747
   
of Sunset Hills, Series 2013A, 5.875%, 9/01/43
     
7,385
 
Total Missouri
   
7,972,188
   
Montana – 0.1% (0.1% of Total Investments)
     
1,210
 
Montana State University, Facilities Revenue Bonds, Improvement Series 2013A, 4.500%, 11/15/38
11/23 at 100.00
Aa3
1,314,496
   
Nebraska – 1.0% (0.7% of Total Investments)
     
2,280
 
Lincoln County Hospital Authority 1, Nebraska, Hospital Revenue and Refunding Bonds, Great
No Opt. Call
A–
2,456,221
   
Plains Regional Medical Center Project, Series 2012, 5.000%, 11/01/42
     
865
 
Omaha Public Power District, Nebraska, Separate Electric System Revenue Bonds, Nebraska City 2,
2/17 at 100.00
AA+
1,465,033
   
Tender Option Bond Trust 11673, 20.534%, 8/01/40 – AMBAC Insured (IF)
     
8,000
 
Public Power Generation Agency, Nebraska, Whelan Energy Center Unit 2 Revenue Bonds, Series
1/17 at 100.00
A2 (4)
8,335,760
   
2007A, 5.000%, 1/01/37 (Pre-refunded 1/01/17) – AMBAC Insured
     
11,145
 
Total Nebraska
   
12,257,014
   
Nevada – 2.4% (1.7% of Total Investments)
     
2,600
 
Clark County, Nevada, Airport Revenue Bonds, Subordinate Lien Series 2009C, 5.000%, 7/01/26 –
7/19 at 100.00
AA
2,911,012
   
AGM Insured
     
12,265
 
Clark County, Nevada, Passenger Facility Charge Revenue Bonds, Las Vegas-McCarran
1/20 at 100.00
AA
13,748,697
   
International Airport, Series 2010A, 5.250%, 7/01/39 – AGM Insured
     
950
 
Las Vegas Valley Water District, Nevada, General Obligation Bonds, Water Series 2012B,
6/22 at 100.00
AA+
1,046,207
   
5.000%, 6/01/42
     
10,000
 
Nevada System of Higher Education, Universities Revenue Bonds, Series 2005B, 5.000%, 7/01/35
1/16 at 100.00
Aa2 (4)
10,200,900
   
(Pre-refunded 1/01/16) – AMBAC Insured
     
25,815
 
Total Nevada
   
27,906,816
   
New Jersey – 6.3% (4.4% of Total Investments)
     
   
New Jersey Economic Development Authority, Revenue Bonds, Motor Vehicle Surcharge,
     
   
Series 2004A:
     
2,675
 
5.000%, 7/01/22 – NPFG Insured
1/16 at 100.00
AA–
2,713,574
4,445
 
5.000%, 7/01/23 – NPFG Insured
1/16 at 100.00
AA–
4,509,097
1,200
 
5.000%, 7/01/29 – NPFG Insured
1/16 at 100.00
AA–
1,217,304
720
 
New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Robert Wood Johnson
7/23 at 100.00
A
823,342
   
University Hospital, Series 2013A, 5.500%, 7/01/43
     
3,075
 
New Jersey Transit Corporation, Certificates of Participation Refunding, Series 2003, 5.500%,
No Opt. Call
AA
3,100,892
   
10/01/15 – AGM Insured
     
5,000
 
New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Capital
No Opt. Call
A–
2,891,950
   
Appreciation Series 2010A, 0.000%, 12/15/26
     
   
New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2006C:
     
25,000
 
0.000%, 12/15/35 – AMBAC Insured
No Opt. Call
A–
8,437,500
10,000
 
0.000%, 12/15/36 – AMBAC Insured
No Opt. Call
A–
3,213,100
10,500
 
New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2007A,
12/17 at 100.00
AA
11,189,220
   
5.000%, 12/15/34 – AMBAC Insured
     
9,000
 
New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2012AA,
No Opt. Call
A–
9,236,250
   
5.000%, 6/15/38
     
14,000
 
New Jersey Turnpike Authority, Revenue Bonds, Refunding Series 2005D-1, 5.250%,
No Opt. Call
AA
17,136,840
   
1/01/26 – AGM Insured
     
330
 
New Jersey Turnpike Authority, Revenue Bonds, Tender Option Bond Trust 1154, 17.019%,
7/22 at 100.00
A+
464,855
   
1/01/43 (IF) (5)
     
   
Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds,
     
   
Series 2007-1A:
     
1,545
 
4.500%, 6/01/23
6/17 at 100.00
BB
1,546,715
785
 
4.625%, 6/01/26
6/17 at 100.00
B+
756,293
3,300
 
4.750%, 6/01/34
6/17 at 100.00
B–
2,465,397
5,000
 
5.000%, 6/01/41
6/17 at 100.00
B–
3,773,550
96,575
 
Total New Jersey
   
73,475,879
   
New Mexico – 0.4% (0.3% of Total Investments)
     
2,000
 
New Mexico Finance Authority, Public Project Revolving Fund Revenue Bonds, Series 2005E,
12/15 at 100.00
Aa2
2,007,920
   
5.000%, 6/15/25 – NPFG Insured
     
2,725
 
Rio Rancho, New Mexico, Water and Wastewater Revenue Bonds, Refunding Series 2009, 5.000%,
5/19 at 100.00
AA
3,067,642
   
5/15/21 – AGM Insured
     
4,725
 
Total New Mexico
   
5,075,562
   
New York – 8.3% (5.7% of Total Investments)
     
2,110
 
Dormitory Authority of the State of New York, FHA-Insured Mortgage Revenue Bonds, Montefiore
8/15 at 100.00
AA–
2,118,271
   
Hospital, Series 2004, 5.000%, 8/01/23 – FGIC Insured
     
3,000
 
Dormitory Authority of the State of New York, Revenue Bonds, Columbia University, Series
4/21 at 100.00
AAA
3,423,660
   
2011A, 5.000%, 10/01/41
     
7,435
 
Dormitory Authority of the State of New York, Revenue Bonds, New School University, Series
7/20 at 100.00
AA
8,529,432
   
2010, 5.500%, 7/01/43 – AGM Insured
     
6,595
 
Dormitory Authority of the State of New York, Revenue Bonds, New School University, Series
7/25 at 100.00
A–
7,209,390
   
2015A, 5.000%, 7/01/50
     
3,200
 
Dormitory Authority of the State of New York, Revenue Bonds, New York University, Series
7/22 at 100.00
AA–
3,568,448
   
2012A, 5.000%, 7/01/42
     
1,300
 
Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Senior Fiscal 2012 Series
2/21 at 100.00
A
1,481,701
   
2011A, 5.750%, 2/15/47
     
8,150
 
Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Series 2006A, 4.500%,
2/17 at 100.00
AA–
8,484,802
   
2/15/47 – NPFG Insured
     
11,415
 
Long Island Power Authority, New York, Electric System General Revenue Bonds, Series 2006A,
6/16 at 100.00
AA–
11,790,666
   
5.000%, 12/01/25 – FGIC Insured
     
3,000
 
Long Island Power Authority, New York, Electric System General Revenue Bonds, Series 2006C,
9/16 at 100.00
AA–
3,118,740
   
5.000%, 9/01/35 – NPFG Insured
     
   
Long Island Power Authority, New York, Electric System General Revenue Bonds, Series 2014A:
     
1,045
 
4.000%, 9/01/39 – AGM Insured
9/24 at 100.00
AA
1,056,892
780
 
5.000%, 9/01/44
9/24 at 100.00
A–
854,443
2,830
 
Long Island Power Authority, New York, Electric System Revenue Bonds, Series 2011A,
5/21 at 100.00
A–
3,089,256
   
5.000%, 5/01/38
     
6,165
 
New York Convention Center Development Corporation, New York, Hotel Unit Fee Secured Revenue
11/15 at 100.00
AA+ (4)
6,241,693
   
Bonds, Series 2005, 5.000%, 11/15/44 (Pre-refunded 11/15/15) – AMBAC Insured
     
6,135
 
New York Liberty Development Corporation, New York, Liberty Revenue Bonds, 3 World Trade
11/24 at 100.00
N/R
6,194,019
   
Center Project, Class 1 Series 2014, 5.000%, 11/15/44
     
10,000
 
New York Liberty Development Corporation, Revenue Bonds, Goldman Sachs Headquarters Issue,
No Opt. Call
A
11,703,200
   
Series 2005, 5.250%, 10/01/35
     
4,045
 
New York State Environmental Facilities Corporation, State Clean Water and Drinking Water
6/22 at 100.00
AAA
6,441,541
   
Revolving Funds Revenue Bonds, New York City Municipal Water Finance Authority Projects,
     
   
Tender Option Bond Trust 2012-9W, 13.778%, 6/15/26 (IF) (5)
     
270
 
New York State Housing Finance Agency, Mortgage Revenue Refunding Bonds, Housing Project,
11/15 at 100.00
AA
270,732
   
Series 1996A, 6.125%, 11/01/20 – AGM Insured
     
3,335
 
New York State Urban Development Corporation, State Personal Income Tax Revenue Bonds, Tender
3/17 at 100.00
AAA
3,937,635
   
Option Bond Trust 09-6W, 13.442%, 3/15/37 (IF) (5)
     
2,105
 
Onondaga Civic Development Corporation, New York, Revenue Bonds, Saint Joseph’s Hospital
7/22 at 100.00
BB
2,159,330
   
Health Center Project, Series 2012, 5.000%, 7/01/42
     
   
Triborough Bridge and Tunnel Authority, New York, General Purpose Revenue Bonds, Refunding
     
   
Subordinate Lien Series 2013A:
     
775
 
5.000%, 11/15/28
No Opt. Call
A+
890,545
5,545
 
0.000%, 11/15/31
No Opt. Call
A+
3,097,714
405
 
0.000%, 11/15/32
No Opt. Call
A+
214,865
89,640
 
Total New York
   
95,876,975
   
North Carolina – 1.4% (0.9% of Total Investments)
     
3,555
 
Charlotte, North Carolina, Water and Sewer System Refunding Bonds, Tender Option Bond Trust
7/20 at 100.00
AAA
5,048,242
   
43W, 13.479%, 7/01/38 (IF) (5)
     
5,000
 
North Carolina Medical Care Commission, Health Care Facilities Revenue Bonds, Duke University
6/22 at 100.00
AA
5,571,000
   
Health System, Series 2012A, 5.000%, 6/01/42
     
1,455
 
North Carolina Medical Care Commission, Health Care Facilities Revenue Bonds, Vidant Health,
6/22 at 100.00
A+
1,577,817
   
Refunding Series 2012A, 5.000%, 6/01/36
     
1,875
 
North Carolina Medical Care Commission, Health Care Facilities Revenue Bonds, Vidant Health,
6/25 at 100.00
A+
2,047,631
   
Refunding Series 2015, 5.000%, 6/01/45
     
1,500
 
North Carolina Medical Care Commission, Health Care Facilities Revenue Refunding Bonds,
10/22 at 100.00
AA–
1,623,165
   
WakeMed, Series 2012A, 5.000%, 10/01/38
     
13,385
 
Total North Carolina
   
15,867,855
   
North Dakota – 0.7% (0.5% of Total Investments)
     
5,080
 
Burleigh County, North Dakota, Health Care Revenue Bonds, Saint Alexius Medical Center
7/22 at 100.00
N/R (4)
5,928,766
   
Project, Refunding Series 2012A, 4.500%, 7/01/32 (Pre-refunded 7/01/22)
     
1,015
 
Grand Forks, North Dakota, Health Care System Revenue Bonds, Altru Health System Obligated
12/21 at 100.00
A–
1,087,958
   
Group, Series 2012, 5.000%, 12/01/35
     
1,420
 
Williston, North Dakota, Multifamily Housing Revenue Bonds, Eagle Crest Apartments LLC
9/23 at 100.00
N/R
1,484,766
   
Project, Series 2013, 7.750%, 9/01/38
     
7,515
 
Total North Dakota
   
8,501,490
   
Ohio – 8.0% (5.5% of Total Investments)
     
320
 
Akron, Bath and Copley Joint Township Hospital District, Ohio, Hospital Revenue Bonds,
5/22 at 100.00
A1
342,672
   
Children’s Hospital Medical Center, Improvement & Refunding Series 2012, 5.000%, 11/15/42
     
   
Allen County, Ohio, Hospital Facilities Revenue Bonds, Catholic Health Partners, Refunding and
     
   
Improvement Series 2012A:
     
650
 
5.000%, 5/01/33
5/22 at 100.00
AA–
709,768
860
 
4.000%, 5/01/33
5/22 at 100.00
AA–
866,545
800
 
5.000%, 5/01/42
5/22 at 100.00
AA–
863,560
   
Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue
     
   
Bonds, Senior Lien, Series 2007A-2:
     
25
 
5.375%, 6/01/24
6/17 at 100.00
B–
21,136
6,045
 
5.125%, 6/01/24
6/17 at 100.00
B–
5,030,891
710
 
5.875%, 6/01/30
6/17 at 100.00
B–
587,802
13,445
 
5.750%, 6/01/34
6/17 at 100.00
B–
10,733,681
1,485
 
5.875%, 6/01/47
6/17 at 100.00
B
1,194,697
6,205
 
Cleveland Heights-University Heights City School District, Ohio, General Obligation Bonds,
6/23 at 100.00
AA
6,644,004
   
School Improvement Series 2014, 5.000%, 12/01/51
     
5,975
 
Fairfield County, Ohio, Hospital Facilities Revenue Bonds, Fairfield Medical Center Project,
6/23 at 100.00
Baa2
6,302,550
   
Series 2013, 5.000%, 6/15/43
     
1,465
 
Franklin County, Ohio, Hospital Revenue Bonds, Nationwide Children’s Hospital Project,
5/22 at 100.00
Aa2
1,574,128
   
Improvement Series 2012A, 5.000%, 11/01/42
     
   
Hamilton County, Ohio, Sales Tax Bonds, Subordinate Lien, Series 2006A:
     
7,775
 
4.250%, 12/01/32 – AMBAC Insured
12/16 at 100.00
A+
7,853,061
4,605
 
4.250%, 12/01/32 – AMBAC Insured (UB)
12/16 at 100.00
A+
4,651,234
6,920
 
JobsOhio Beverage System, Ohio, Statewide Liquor Profits Revenue Bonds, Senior Lien Series
1/23 at 100.00
AA
7,659,333
   
2013A, 5.000%, 1/01/38
     
6,000
 
Middletown City School District, Butler County, Ohio, General Obligation Bonds, Refunding
No Opt. Call
A2
7,314,360
   
Series 2007, 5.250%, 12/01/31 – AGM Insured
     
11,000
 
Northeast Ohio Regional Sewer District, Wastewater Improvement Revenue Bonds, Refunding &
11/24 at 100.00
AA+
12,264,890
   
Improvement Series 2014, 5.000%, 11/15/49
     
5,000
 
Ohio Turnpike Commission, Turnpike Revenue Bonds, Infrastructure Project, Junior Lien Series
2/23 at 100.00
A+
5,446,150
   
2013A-1, 5.000%, 2/15/48
     
3,960
 
Ohio Turnpike Commission, Turnpike Revenue Bonds, Infrastructure Projects, Junior Lien
2/31 at 100.00
A+
3,321,094
   
Convertible Series 2013A-3, 0.000%, 2/15/36
     
   
Southeastern Ohio Port Authority, Hospital Facilities Revenue Bonds, Memorial Health System
     
   
Obligated Group Project, Refunding and Improvement Series 2012:
     
135
 
5.750%, 12/01/32
12/22 at 100.00
BB
144,778
130
 
6.000%, 12/01/42
12/22 at 100.00
BB
140,288
4,190
 
Springboro Community City School District, Warren County, Ohio, General Obligation Bonds,
No Opt. Call
AA
5,119,593
   
Refunding Series 2007, 5.250%, 12/01/26 – AGM Insured
     
3,670
 
Tuscarawas County Economic Development and Finance Alliance, Ohio, Higher Education Facilities
3/25 at 100.00
N/R
3,685,708
   
Revenue Bonds, Ashland University, Refunding & Improvement Series 2015, 6.000%, 3/01/45
     
   
(WI/DD, Settling 8/03/15)
     
91,370
 
Total Ohio
   
92,471,923
   
Oregon – 0.2% (0.2% of Total Investments)
     
1,500
 
Oregon Health and Science University, Revenue Bonds, Series 2012E, 5.000%, 7/01/32
No Opt. Call
AA–
1,686,090
1,000
 
Tigard, Washington County, Oregon, Water System Revenue Bonds, Series 2012, 5.000%, 8/01/42
8/22 at 100.00
AA–
1,108,780
2,500
 
Total Oregon
   
2,794,870
   
Pennsylvania – 7.0% (4.8% of Total Investments)
     
3,545
 
Allegheny County Sanitary Authority, Pennsylvania, Sewer Revenue Bonds, Series 2005A, 5.000%,
12/15 at 100.00
AA– (4)
3,599,593
   
12/01/23 (Pre-refunded 12/01/15) – NPFG Insured
     
7,000
 
Chester County Health and Educational Facilities Authority, Pennsylvania, Health System
5/20 at 100.00
AA
7,636,230
   
Revenue Bonds, Jefferson Health System, Series 2010A, 5.000%, 5/15/40
     
4,000
 
Commonwealth Financing Authority, Pennsylvania, State Appropriation Lease Bonds, Series 2006A,
6/16 at 100.00
AA (4)
4,156,920
   
5.000%, 6/01/26 (Pre-refunded 6/01/16) – AGM Insured (UB)
     
2,150
 
Dauphin County General Authority, Pennsylvania, Health System Revenue Bonds, Pinnacle Health
6/22 at 100.00
A
2,303,209
   
System Project, Series 2012A, 5.000%, 6/01/42
     
4,235
 
Delaware County Authority, Pennsylvania, Revenue Bonds, Villanova University, Series 2006,
8/16 at 100.00
A+ (4)
4,432,690
   
5.000%, 8/01/24 (Pre-refunded 8/01/16) – AMBAC Insured
     
3,500
 
Delaware River Port Authority, New Jersey and Pennsylvania, Revenue Bonds, Series 2010E,
1/20 at 100.00
AA
3,882,375
   
5.000%, 1/01/40 – AGM Insured
     
4,000
 
Erie Water Authority, Erie County, Pennsylvania, Water Revenue Bonds, Series 2011A, 4.625%,
12/21 at 100.00
A1
4,169,160
   
12/01/44 – AGM Insured
     
4,585
 
Lehigh County Authority, Pennsylvania, Water and Sewer Revenue Bonds, Allentown Concession,
12/23 at 100.00
A
5,117,777
   
Series 2013A, 5.125%, 12/01/47
     
1,045
 
Montgomery County Industrial Development Authority, Pennsylvania, FHA Insured Mortgage Revenue
8/20 at 100.00
AA (4)
1,244,219
   
Bonds, New Regional Medical Center Project, Series 2010, 5.375%, 8/01/38 (Pre-refunded
     
   
8/01/20) (UB) (5)
     
5,000
 
Montgomery County Industrial Development Authority, Pennsylvania, Health System Revenue Bonds,
1/25 at 100.00
Baa2
5,284,150
   
Albert Einstein Healthcare Network Issue, Series 2015A, 5.250%, 1/15/45
     
5,235
 
Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, Drexel University, Series
11/15 at 100.00
AA–
5,254,527
   
2005A, 5.000%, 5/01/28 – NPFG Insured
     
7,275
 
Pennsylvania Public School Building Authority, Lease Revenue Bonds, School District of
12/16 at 100.00
AA
7,510,128
   
Philadelphia, Series 2006B, 4.500%, 6/01/32 – AGM Insured
     
2,100
 
Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Series 2006A, 5.000%, 12/01/26
6/16 at 100.00
A+ (4)
2,182,551
   
(Pre-refunded 6/01/16) – AMBAC Insured
     
3,500
 
Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Series 2009C, 0.000%,
6/26 at 100.00
AA
4,160,275
   
6/01/33 – AGM Insured
     
2,985
 
Philadelphia Hospitals and Higher Education Facilities Authority, Pennsylvania, Health System
5/20 at 100.00
N/R (4)
3,483,943
   
Revenue Bonds, Jefferson Health System, Series 2010B, 5.000%, 5/15/40 (Pre-refunded 5/15/20)
     
505
 
Philadelphia Hospitals and Higher Education Facilities Authority, Pennsylvania, Hospital
7/22 at 100.00
BB+
530,467
   
Revenue Bonds, Temple University Health System Obligated Group, Series 2012A, 5.625%, 7/01/42
     
1,425
 
Philadelphia, Pennsylvania, General Obligation Bonds, Refunding Series 2011, 6.500%, 8/01/41
8/20 at 100.00
A+
1,702,633
3,310
 
Philadelphia, Pennsylvania, Water and Wastewater Revenue Bonds, Series 1997A, 5.125%,
No Opt. Call
A1 (4)
4,007,020
   
8/01/27 – AMBAC Insured (ETM)
     
3,415
 
Pittsburgh and Allegheny County Sports and Exhibition Authority, Pennsylvania, Sales Tax
8/20 at 100.00
AA
3,843,856
   
Revenue Bonds, Refunding Series 2010, 5.000%, 2/01/31 – AGM Insured
     
3,785
 
Reading School District, Berks County, Pennsylvania, General Obligation Bonds, Series 2005,
1/16 at 100.00
AA
3,865,658
   
5.000%, 1/15/25 – AGM Insured
     
1,125
 
Scranton, Pennsylvania, Sewer Authority Revenue Bonds, Series 2011A, 5.250%, 12/01/31 –
12/21 at 100.00
AA
1,263,758
   
AGM Insured
     
1,930
 
Susquehanna Area Regional Airport Authority, Pennsylvania, Airport System Revenue Bonds,
No Opt. Call
Baa3
1,882,368
   
Series 2012B, 4.000%, 1/01/33
     
75,650
 
Total Pennsylvania
   
81,513,507
   
Puerto Rico – 1.3% (0.9% of Total Investments)
     
1,000
 
Puerto Rico Municipal Finance Agency, Series 2005C, 5.250%, 8/01/21 – CIFG Insured
No Opt. Call
AA
988,620
5,880
 
Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, First Subordinate Series
8/20 at 100.00
AA
5,286,590
   
2010C, 5.125%, 8/01/42 – AGM Insured
     
   
Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Series 2007A:
     
47,300
 
0.000%, 8/01/44 – NPFG Insured
No Opt. Call
AA–
6,698,626
5,605
 
0.000%, 8/01/54 – AMBAC Insured
No Opt. Call
CCC–
379,459
1,190
 
Puerto Rico, Highway Revenue Bonds, Highway and Transportation Authority, Series 2003AA,
No Opt. Call
A3 (4)
1,298,195
   
5.500%, 7/01/17 – NPFG Insured (ETM)
     
60,975
 
Total Puerto Rico
   
14,651,490
   
Rhode Island – 0.9% (0.6% of Total Investments)
     
9,500
 
Rhode Island Health and Educational Building Corporation, Higher Education Facility Revenue
9/17 at 100.00
AA+
10,226,180
   
Bonds, Brown University, Refunding Series 2007, 5.000%, 9/01/37
     
   
South Carolina – 2.7% (1.9% of Total Investments)
     
8,000
 
Greenville County School District, South Carolina, Installment Purchase Revenue Bonds, Series
12/16 at 100.00
AA
8,462,320
   
2006, 5.000%, 12/01/24
     
1,955
 
Greenville County School District, South Carolina, Installment Purchase Revenue Bonds, Series
12/16 at 100.00
AA (4)
2,073,414
   
2006, 5.000%, 12/01/28 (Pre-refunded 12/01/16) – AGM Insured
     
900
 
South Carolina JOBS Economic Development Authority, Industrial Revenue Bonds, South Carolina
2/23 at 100.00
A
949,869
   
Electric and Gas Company, Series 2013, 4.000%, 2/01/28
     
375
 
South Carolina Jobs-Economic Development Authority, Hospital Revenue Bonds, Palmetto Health,
8/21 at 100.00
AA
449,543
   
Refunding Series 2011A, 6.500%, 8/01/39 – AGM Insured
     
9,900
 
South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Refunding Series
12/24 at 100.00
AA–
10,807,038
   
2014C, 5.000%, 12/01/46
     
3,475
 
South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Series 2013A,
12/23 at 100.00
AA–
3,843,732
   
5.125%, 12/01/43
     
4,500
 
Spartanburg Regional Health Services District, Inc., South Carolina, Hospital Revenue
4/22 at 100.00
A1
4,938,165
   
Refunding Bonds, Series 2012A, 5.000%, 4/15/32
     
29,105
 
Total South Carolina
   
31,524,081
   
South Dakota – 0.8% (0.6% of Total Investments)
     
8,800
 
South Dakota Health and Educational Facilities Authority, Revenue Bonds, Avera Health System,
7/24 at 100.00
AA–
9,616,464
   
Series 2014, 5.000%, 7/01/44
     
   
Tennessee – 0.9% (0.6% of Total Investments)
     
3,000
 
Blount County Public Building Authority, Tennessee, Local Government Improvement Loans, Oak
12/15 at 100.00
AA
3,012,030
   
Ridge General Obligation, 2005 Series B9A, Variable Rate Demand Obligations, 5.000%, 6/01/24 –
     
   
AMBAC Insured
     
6,285
 
Chattanooga Health, Educational and Housing Facility Board, Tennessee, Hospital Revenue Bonds,
1/23 at 100.00
A+
6,837,263
   
Catholic Health Initiatives, Series 2013A, 5.250%, 1/01/45
     
1,000
 
Harpeth Valley Utilities District, Davidson and Williamson Counties, Tennessee, Utilities
9/22 at 100.00
AA
1,036,190
   
Revenue Bonds, Series 2012A, 4.000%, 9/01/40
     
10,285
 
Total Tennessee
   
10,885,483
   
Texas – 9.9% (6.8% of Total Investments)
     
3,035
 
Bexar County, Texas, Venue Project Revenue Bonds, Refunding Series 2010, 5.500%, 8/15/49 –
8/19 at 100.00
AA
3,355,739
   
AGM Insured
     
365
 
Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien Refunding Series 2013A,
1/23 at 100.00
BBB
391,846
   
5.000%, 1/01/43
     
1,700
 
Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien Series 2011,
1/21 at 100.00
BBB
1,961,868
   
6.250%, 1/01/46
     
   
Clifton Higher Education Finance Corporation, Texas, Education Revenue Bonds, Uplift Education
     
   
Charter School, Series 2013A:
     
1,925
 
4.350%, 12/01/42
12/22 at 100.00
BBB–
1,836,046
1,000
 
4.400%, 12/01/47
12/22 at 100.00
BBB–
942,410
10,000
 
Dallas, Texas, Waterworks and Sewer System Revenue Bonds, Refunding Series 2007, 4.375%,
10/17 at 100.00
AAA
10,540,700
   
10/01/32 – AMBAC Insured (UB)
     
1,500
 
El Paso, Texas, Airport Revenue Bonds, El Paso International Airport Series 2011,
8/20 at 100.00
A+
1,645,695
   
5.250%, 8/15/33
     
2,735
 
Grand Parkway Transportation Corporation, Texas, System Toll Revenue Bonds, Tender Option Bond
10/23 at 100.00
AA+
3,672,257
   
Trust 2015-XF0228, 17.950%, 4/01/53 (IF)
     
5,625
 
Harris County Hospital District, Texas, Revenue Bonds, Series 2007A, 5.250%, 2/15/42 –
2/17 at 100.00
AA–
5,770,294
   
NPFG Insured
     
4,040
 
Harris County, Texas, Toll Road Revenue Bonds, Subordinate Lien Unlimited Tax Tender Options
No Opt. Call
AAA
7,184,817
   
Bond Trust 3028, 14.529%, 8/15/28 – AGM Insured (IF)
     
   
Harris County-Houston Sports Authority, Texas, Revenue Bonds, Capital Appreciation Refunding
     
   
Senior Lien Series 2014A:
     
615
 
0.000%, 11/15/41 – AGM Insured
11/31 at 62.66
AA
179,340
1,230
 
0.000%, 11/15/42 – AGM Insured
11/31 at 59.73
AA
339,898
1,525
 
0.000%, 11/15/43 – AGM Insured
11/31 at 56.93
AA
405,742
3,870
 
0.000%, 11/15/44 – AGM Insured
11/31 at 54.25
AA
958,870
5,380
 
0.000%, 11/15/45 – AGM Insured
11/31 at 51.48
AA
1,269,465
990
 
Houston, Texas, Airport System Revenue Bonds, Subordinate Lien Series 2000B, 5.450%, 7/01/24 –
No Opt. Call
AA
1,161,498
   
AGM Insured
     
460
 
Houston, Texas, Airport System Special Facilities Revenue Bonds, United Airlines, Inc.
7/24 at 100.00
BB–
482,232
   
Terminal E Project, Refunding Series 2014, 5.000%, 7/01/29
     
4,550
 
Houston, Texas, Subordinate Lien Airport System Revenue Refunding Bonds, Series 2012B,
7/22 at 100.00
A
5,093,361
   
5.000%, 7/01/31
     
2,870
 
Hutto Independent School District, Williamson County, Texas, General Obligation Bonds,
8/21 at 100.00
A
3,052,762
   
Refunding Series 2012A, 5.000%, 8/01/46
     
2,340
 
Laredo, Webb County, Texas, Waterworks and Sewer System Revenue Bonds, Series 2011, 5.000%,
3/21 at 100.00
AA
2,586,496
   
3/01/41 – AGM Insured
     
3,305
 
Lower Colorado River Authority, Texas, Transmission Contract Revenue Bonds, LCRA Transmission
5/25 at 100.00
A+
3,635,004
   
Services Corporation Project, Refunding Series 2015, 5.000%, 5/15/45
     
   
McCamey County Hospital District, Texas, General Obligation Bonds, Series 2013:
     
1,780
 
5.750%, 12/01/33
12/25 at 100.00
Baa2
1,953,639
1,800
 
6.125%, 12/01/38
12/25 at 100.00
Baa2
1,979,280
3,845
 
North Central Texas Health Facilities Development Corporation, Texas, Revenue Bonds,
8/22 at 100.00
Aa2
4,285,752
   
Children’s Medical Center Dallas Project, Series 2012, 5.000%, 8/15/32
     
4,290
 
North Fort Bend Water Authority, Texas, Water System Revenue Bonds, Series 2011, 5.000%,
12/21 at 100.00
AA
4,713,638
   
12/15/36 – AGM Insured
     
1,860
 
North Texas Tollway Authority, System Revenue Bonds, Refunding Second Tier, Series 2015A,
1/25 at 100.00
A2
2,038,337
   
5.000%, 1/01/35
     
2,410
 
Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue
11/21 at 100.00
AA–
2,704,815
   
Bonds, Baylor Health Care System, Series 2011A, 5.000%, 11/15/30
     
3,480
 
Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue
9/23 at 100.00
A
3,813,454
   
Bonds, Hendrick Medical Center, Series 2013, 5.500%, 9/01/43
     
   
Texas Municipal Gas Acquisition and Supply Corporation III, Gas Supply Revenue Bonds,
     
   
Series 2012:
     
2,200
 
5.000%, 12/15/30
No Opt. Call
A3
2,380,026
740
 
5.000%, 12/15/32
No Opt. Call
A3
795,611
4,000
 
Texas State, General Obligation Bonds, Transportation Commission Highway Improvement Series
No Opt. Call
AAA
4,508,320
   
2012A, 5.000%, 4/01/42
     
2,855
 
Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, First Tier
8/22 at 100.00
A–
3,099,702
   
Refunding Series 2012A, 5.000%, 8/15/41
     
3,265
 
Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, First Tier
8/24 at 100.00
A–
3,607,009
   
Refunding Series 2015B, 5.000%, 8/15/37
     
21,275
 
Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, Second Tier
8/24 at 100.00
BBB+
22,791,695
   
Refunding Series 2015C, 5.000%, 8/15/42
     
112,860
 
Total Texas
   
115,137,618
   
Utah – 1.6% (1.1% of Total Investments)
     
5,760
 
Central Weber Sewer Improvement District, Utah, Sewer Revenue Bonds, Refunding Series 2010A,
3/20 at 100.00
AA
6,423,552
   
5.000%, 3/01/33 – AGC Insured
     
2,830
 
Utah Transit Authority, Sales Tax Revenue and Refunding Bonds, Series 2012, 5.000%, 6/15/42
6/22 at 100.00
A+
3,094,435
4,255
 
Utah Transit Authority, Sales Tax Revenue Bonds, Series 2008A, 5.250%, 6/15/38
6/18 at 100.00
AAA
4,776,748
   
(Pre-refunded 6/15/18)
     
4,250
 
Utah Transit Authority, Sales Tax Revenue Bonds, Series 2008A, 5.000%, 6/15/36 (Pre-refunded
6/18 at 100.00
AAA
4,741,088
   
6/15/18) – AGM Insured
     
17,095
 
Total Utah
   
19,035,823
   
Vermont – 2.0% (1.3% of Total Investments)
     
5,000
 
University of Vermont and State Agricultural College, Revenue Bonds, Refunding Series 2007,
10/17 at 100.00
AA
5,367,450
   
5.000%, 10/01/43 – AGM Insured
     
   
University of Vermont and State Agricultural College, Revenue Bonds, Refunding Series 2015:
     
1,000
 
4.000%, 10/01/40
10/25 at 100.00
Aa3
1,005,340
10,000
 
5.000%, 10/01/45
10/25 at 100.00
Aa3
11,146,600
5,100
 
University of Vermont and State Agricultural College, Revenue Bonds, Series 2005, 5.000%,
10/15 at 100.00
AA– (4)
5,141,463
   
10/01/35 (Pre-refunded 10/01/15) – NPFG Insured
     
21,100
 
Total Vermont
   
22,660,853
   
Virginia – 0.4% (0.2% of Total Investments)
     
430
 
Chesapeake, Virginia, Transportation System Senior Toll Road Revenue Bonds, Capital
7/28 at 100.00
BBB
304,113
   
Appreciation Series 2012B, 0.000%, 7/15/40
     
245
 
Roanoke Industrial Development Authority, Virginia, Hospital Revenue Bonds, Carilion Health
7/20 at 100.00
AA
267,239
   
System Obligated Group, Series 2005B, 5.000%, 7/01/38
     
5
 
Roanoke Industrial Development Authority, Virginia, Hospital Revenue Bonds, Carilion Health
7/20 at 100.00
AA (4)
5,868
   
System Obligated Group, Series 2005B, 5.000%, 7/01/38 (Pre-refunded 7/01/20)
     
2,465
 
Route 460 Funding Corporation, Virginia, Toll Road Revenue Bonds, Series 2012A, 5.000%, 7/01/52
No Opt. Call
BBB–
2,594,018
   
Route 460 Funding Corporation, Virginia, Toll Road Revenue Bonds, Series 2012B:
     
955
 
0.000%, 7/01/34
No Opt. Call
BBB–
377,645
520
 
0.000%, 7/01/35
No Opt. Call
BBB–
198,177
1,350
 
0.000%, 7/01/37
No Opt. Call
BBB–
468,531
5,970
 
Total Virginia
   
4,215,591
   
Washington – 4.9% (3.4% of Total Investments)
     
5,000
 
King County, Washington, Sewer Revenue Bonds, Refunding Series 2012, 5.000%, 1/01/52
1/22 at 100.00
AA+
5,458,600
4,130
 
King County, Washington, Sewer Revenue Bonds, Refunding Series 2015A, 5.000%, 7/01/47
1/25 at 100.00
AA+
4,636,462
5,000
 
King County, Washington, Sewer Revenue Bonds, Series 2006-2, 13.643%, 1/01/26 –
1/17 at 100.00
AA+
5,830,850
   
AGM Insured (IF)
     
3,000
 
King County, Washington, Sewer Revenue Bonds, Series 2007, 5.000%, 1/01/42 (Pre-refunded
7/17 at 100.00
AA+ (4)
3,249,660
   
7/01/17) – AGM Insured
     
3,000
 
Port of Seattle, Washington, Revenue Bonds, Intermediate Lien Series 2015A, 5.000%, 4/01/40
10/24 at 100.00
A+
3,327,780
   
(WI/DD, Settling 8/06/15)
     
1,560
 
Port of Seattle, Washington, Revenue Bonds, Refunding Intermediate Lien Series 2012A,
8/22 at 100.00
A+
1,778,915
   
5.000%, 8/01/31
     
1,250
 
University of Washington, General Revenue Bonds, Tender Option Bond Trust 3005, 18.205%,
6/17 at 100.00
Aaa
1,650,300
   
6/01/31 (Pre-refunded 6/01/17) – AMBAC Insured (IF)
     
4,900
 
Washington Health Care Facilities Authority, Revenue Bonds, Fred Hutchinson Cancer Research
1/21 at 100.00
A
5,431,258
   
Center, Series 2011A, 5.625%, 1/01/35
     
10,000
 
Washington Health Care Facilities Authority, Revenue Bonds, Providence Health & Services,
10/22 at 100.00
AA
10,135,300
   
Series 2012A, 4.250%, 10/01/40
     
1,250
 
Washington Health Care Facilities Authority, Revenue Bonds, Seattle Children’s Hospital,
10/22 at 100.00
Aa2
1,394,725
   
Refunding Series 2012B, 5.000%, 10/01/30
     
3,290
 
Washington Health Care Facilities Authority, Revenue Bonds, Seattle Children’s Hospital,
10/22 at 100.00
Aa2
3,576,362
   
Series 2012A, 5.000%, 10/01/42
     
10,855
 
Washington, General Obligation Bonds, Series 2000S-5, 0.000%, 1/01/20 – FGIC Insured
No Opt. Call
AA+
10,084,078
53,235
 
Total Washington
   
56,554,290
   
West Virginia – 1.9% (1.3% of Total Investments)
     
16,845
 
West Virginia Hospital Finance Authority, Hospital Revenue Bonds, West Virginia United Health
6/23 at 100.00
A
18,944,561
   
System Obligated Group, Refunding and Improvement Series 2013A, 5.500%, 6/01/44
     
3,000
 
West Virginia State Building Commission, Lease Revenue Refunding Bonds, Regional Jail and
No Opt. Call
N/R
3,389,730
   
Corrections Facility, Series 1998A, 5.375%, 7/01/21 – AMBAC Insured
     
19,845
 
Total West Virginia
   
22,334,291
   
Wisconsin – 2.5% (1.7% of Total Investments)
     
4,100
 
University of Wisconsin Hospitals and Clinics Authority, Revenue Bonds, Refunding Series
4/23 at 100.00
Aa3
4,498,640
   
2013A, 5.000%, 4/01/38
     
1,015
 
Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Froedtert Health Inc.
10/22 at 100.00
AA–
1,102,676
   
Obligated Group, Series 2012A, 5.000%, 4/01/42
     
1,000
 
Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Gundersen Lutheran,
10/21 at 100.00
A+
1,119,880
   
Series 2011A, 5.250%, 10/15/39
     
4,360
 
Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Mercy Alliance, Inc.,
6/22 at 100.00
A2
4,667,990
   
Series 2012, 5.000%, 6/01/39
     
2,100
 
Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Meriter Hospital Inc.,
No Opt. Call
Aa3
2,305,485
   
Series 1992A, 6.000%, 12/01/22 – FGIC Insured
     
2,650
 
Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Ministry Health Care,
8/22 at 100.00
AA
2,901,247
   
Inc., Refunding 2012C, 5.000%, 8/15/32
     
7,420
 
Wisconsin State, General Fund Annual Appropriation Revenue Bonds, Refunding Series 2009A,
5/19 at 100.00
AA–
8,564,609
   
5.750%, 5/01/33
     
3,775
 
Wisconsin State, General Obligation Bonds, Series 2006A, 4.750%, 5/01/25 (Pre-refunded
5/16 at 100.00
AA (4)
3,902,444
   
5/01/16) – FGIC Insured
     
26,420
 
Total Wisconsin
   
29,062,971
   
Wyoming – 1.2% (0.8% of Total Investments)
     
9,625
 
Sweetwater County, Wyoming, Hospital Revenue Bonds, Memorial Hospital Project, Refunding
9/23 at 100.00
BBB
10,077,279
   
Series 2013A, 5.000%, 9/01/37
     
   
Teton County Hospital District, Wyoming, Hospital Revenue Bonds, St. John’s Medical Center
     
   
Project, Series 2011B:
     
2,000
 
5.500%, 12/01/27
12/21 at 100.00
BBB+
2,241,020
1,000
 
6.000%, 12/01/36
12/21 at 100.00
BBB+
1,130,850
12,625
 
Total Wyoming
   
13,449,149
$ 1,723,490
 
Total Municipal Bonds (cost $1,563,359,740)
   
1,672,636,713
 
Principal
           
Amount (000)
 
Description (1)
Coupon
Maturity
Ratings (3)
Value
   
CORPORATE BONDS – 0.0% (0.0% of Total Investments)
       
             
   
Transportation – 0.0% (0.0% of Total Investments)
       
$ 213
 
Las Vegas Monorail Company, Senior Interest Bonds, (6), (7)
5.500%
7/15/19
N/R
$ 38,288
57
 
Las Vegas Monorail Company, Senior Interest Bonds, (6), (7)
5.500%
7/15/55
N/R
7,565
$ 270
 
Total Corporate Bonds (cost $24,141)
     
45,853
   
Total Long-Term Investments (cost $1,563,383,881)
     
1,672,682,566
 
Principal
   
Optional Call
   
Amount (000)
 
Description (1)
Provisions (2)
Ratings (3)
Value
   
SHORT-TERM INVESTMENTS – 1.2% (0.8% of Total Investments)
       
             
   
MUNICIPAL BONDS – 1.2% (0.8% of Total Investments)
       
             
   
California – 1.2% (0.8% of Total Investments)
       
$ 11,110
 
California Statewide Community Development Authority, Revenue Bonds, Daughters of
       
   
Charity Health System, Series 2014A, 6.000%, 12/15/15 (6)
 
No Opt. Call
N/R
$ 11,207,879
1,075
 
California Statewide Community Development Authority, Revenue Bonds, Daughters of
       
   
Charity Health System, Series 2014B, 6.000%, 12/15/15 (6)
 
No Opt. Call
N/R
1,084,471
1,645
 
California Statewide Community Development Authority, Revenue Bonds, Daughters of
       
   
Charity Health System, Series 2014C, 6.000%, 12/15/15 (6)
 
No Opt. Call
N/R
1,659,492
$ 13,830
 
Total Short-Term Investments (cost $13,830,000)
     
13,951,842
   
Total Investments (cost $1,577,213,881) – 145.2%
     
1,686,634,408
   
Floating Rate Obligations – (3.8)%
     
(43,800,000)
   
Variable Rate MuniFund Term Preferred Shares, at Liquidation Value – (13.0)% (8)
     
(151,000,000)
   
Variable Rate Demand Preferred Shares, at Liquidation Value – (30.1)% (9)
     
(349,900,000)
   
Other Assets Less Liabilities – 1.7% (10)
     
19,936,307
   
Net Assets Applicable to Common Shares – 100%
     
$ 1,161,870,715
 
 
Investments in Derivatives as of July 31, 2015 
           
Interest Rate Swaps outstanding
             
               
   
Fund
   
Fixed Rate
   
Unrealized
 
Notional
Pay/Receive
Floating Rate
Fixed Rate
Payment
Effective
Termination
Appreciation
Counterparty
Amount
Floating Rate
Index
(Annualized)
Frequency
Date (11)
Date
(Depreciation)
JPMorgan
$164,600,000
Receive
Weekly USD-SIFMA
2.030%
Quarterly
3/17/16
3/17/26
$(2,796,877)
 
 
Fair Value Measurements
 
Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
 
Level 1 – Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
 
Level 2 – Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).
 
Level 3 – Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).
 
The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities.
 
The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
 
 
Level 1
Level 2
Level 3
Total
Long-Term Investments:
       
Municipal Bonds
$ —
$1,672,636,713
$            —
$1,672,636,713
Corporate Bonds
45,853
45,853
Short-Term Investments:
       
Municipal Bonds
13,951,842
13,951,842
Investments in Derivatives:
       
Interest Rate Swaps*
(2,796,877)
(2,796,877)
Total
$ —
$1,669,839,836
$13,997,695
$1,683,837,531
*Represents net unrealized appreciation (depreciation).
 
The following is a reconciliation of the Fund’s Level 3 investments held at the beginning and end of the measurement period:
 
 
Level 3
Level 3
 
 
Corporate
Short-Term
Level 3
 
Bonds
Municipal Bonds
Totals
Balance at the beginning of period
$45,333
$14,059,578
$14,104,911
Gains (losses):
     
Net realized gains (losses)
Change in net unrealized appreciation (depreciation)
(2,365)
(107,736)
(110,101)
Purchases at cost
2,885
2,885
Sales at proceeds
Net discounts (premiums)
Transfers into
Transfers (out of)
Balance at the end of period
$45,853
$13,951,842
$13,997,695
 
The valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements of assets as of the end of the reporting period, were as follows:
 
     
Unobservable
 
 
Market Value
Techniques
Inputs
Range
Long-Term Corporate Bonds
$      45,853
Odd-Lot Trades
N/A
N/A
Short-Term Municipal Bonds
13,951,842
Discounted
Municipal BBB
1%-4%
   
Cash Flow
Benchmark
 
     
B-Rated
 
     
Hospital Sector
 
Total
$13,997,695
     
 
 
Income Tax Information
 
The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recognizing taxable market discount, timing differences in recognizing certain gains and losses on investment transactions and the treatment of investments in inverse floating rate securities reflected as financing transactions, if any. To the extent that differences arise that are permanent in nature, such amounts are reclassified within the capital accounts on the Statement of Assets and Liabilities presented in the annual report, based on their federal tax basis treatment; temporary differences do not require reclassification. Temporary and permanent differences do not impact the net asset value of the Fund.
 
As of July 31, 2015, the cost of investments (excluding investments in derivatives) was $1,536,363,155.
 
Gross unrealized appreciation and gross unrealized depreciation of investments (excluding investments in derivatives) as of July 31, 2015, were as follows:
   
Gross unrealized:
 
Appreciation
$128,117,422
Depreciation
(21,645,785)
Net unrealized appreciation (depreciation) of investments
$106,471,637
 
 
(1)
 
All percentages shown in the Portfolio of Investments are based on net assets applicable to common shares
   
unless otherwise noted.
(2)
 
Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. There
   
may be other call provisions at varying prices at later dates. Certain mortgage-backed securities may be
   
subject to periodic principal paydowns.
(3)
 
Ratings: Using the highest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc.
   
(“Moody’s”) or Fitch, Inc. (“Fitch”) rating. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB
   
by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of
   
these national rating agencies.
(4)
 
Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency securities,
   
which ensure the timely payment of principal and interest. Certain bonds backed by U.S. Government or
   
agency securities are regarded as having an implied rating equal to the rating of such securities.
(5)
 
Investment, or portion of investment, has been pledged to collateralize the net payment obligations for
   
investments in derivatives and/or inverse floating rate transactions.
(6)
 
Investment valued at fair value using methods determined in good faith by, or at the discretion of, the
   
Board. For fair value measurement disclosure purposes, investment classified as Level 3.
(7)
 
During January 2010, Las Vegas Monorail Company (“Las Vegas Monorail”) filed for federal bankruptcy
   
protection. During March 2012, Las Vegas Monorail emerged from federal bankruptcy with the acceptance
   
of a reorganization plan assigned by the Federal Bankruptcy Court. Under the reorganization plan, the Fund
   
surrendered its Las Vegas Monorail Project Revenue Bonds, First Tier, Series 2000 and in turn received
   
two senior interest corporate bonds: the first with an annual coupon rate of 5.500% maturing on
   
July 15, 2019 and the second with an annual coupon rate of 3.000% (5.500% after December 31, 2015)
   
maturing on July 15, 2055. The Fund’s custodian is not accruing income on the Fund’s records for either
   
senior interest corporate bond.
(8)
 
Variable Rate MuniFund Term Preferred Shares, at Liquidation Value as a percentage of Total
   
Investments is 9.0%.
(9)
 
Variable Rate Demand Preferred Shares, at Liquidation Value as a percentage of Total
   
Investments is 20.7%.
(10)
 
Other assets less liabilities includes the unrealized appreciation (depreciation) of certain over-the-counter
   
derivatives as well as the exchange-cleared and exchange-traded derivatives, when applicable.
(11)
 
Effective date represents the date on which both the Fund and Counterparty commence interest payment
   
accruals on each contract.
(ETM)
 
Escrowed to maturity.
(IF)
 
Inverse floating rate investment.
(UB)
 
Underlying bond of an inverse floating rate trust reflected as a financing transaction.
(WI/DD)
 
Investment, or portion of investment, purchased on a when-issued or delayed delivery basis.
USD-SIFMA
 
United States Dollar-Securities Industry and Financial Market Association
 
 
 
 

 
 
Item 2. Controls and Procedures.

a.  
The registrant's principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act") (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).
 
b.  
There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.
 
Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: See EX-99 CERT attached hereto.

 
 
 

 
 
SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
(Registrant)  Nuveen AMT-Free Municipal Income Fund 
 
By (Signature and Title) /s/ Kevin J. McCarthy                    
       Kevin J. McCarthy
     Vice President and Secretary
                                         
Date:         September 29, 2015        
 
Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.
 
By (Signature and Title) /s/ Gifford R. Zimmerman            
       Gifford R. Zimmerman
     Chief Administrative Officer (principal executive officer)
                        
Date:         September 29, 2015        
 
By (Signature and Title) /s/ Stephen D. Foy                         
 
     Stephen D. Foy
     Vice President and Controller (principal financial officer)
                                                                                         
Date:         September 29, 2015