SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549

                                    Form 8-K

            Current Report Pursuant to Section 13 or 15(d) of the
                        Securities Exchange Act of 1934


        Date of Report (Date of earliest event reported):  June 5, 2001

                              BANK ONE CORPORATION
             (Exact name of registrant as specified in its charter)

          Delaware                       001-15323              31-0738296
(State or other jurisdiction      (Commission File Number)     (IRS Employer
       of incorporation)                                    Identification No.)

            1 Bank One Plaza,  Chicago, IL                       60670
       (Address of principal executive offices)                (Zip Code)

       Registrant's telephone number, including area code:   312-732-4000



Item 5.  Other Events and Regulation FD Disclosure

     On June 5, 2001, the Registrant issued a press release announcing comments
made by James Dimon, Chairman and Chief Executive Officer, regarding the
Registrant's second quarter 2001 earnings. A copy of the press release is
attached as Exhibit 99(a) to this Current Report on Form 8-K and incorporated by
reference herein.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits

(c)  Exhibits.

  Exhibit Number    Description of Exhibits
  --------------    -----------------------

  99(a)             Registrant's June 5, 2001 press release announcing comments
                    about its second quarter 2001 earnings.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.



                                        BANK ONE CORPORATION
                                            (Registrant)


Date: June 6, 2001                      By: /s/ Charles W. Scharf
                                           ---------------------------
                                        Title: Chief Financial Officer

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                                 EXHIBIT INDEX



Exhibit Number    Description of Exhibits
--------------    -----------------------


99(a)             Registrant's June 5, 2001 press release announcing comments
                  about its second quarter 2001 earnings.



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