The S&P 500 (NYSEARCA:SPY) has undergone a dramatic shift in sentiment over the first week of March 2026, propelled by President Trump’s sudden "total reset" of trade relations with China. Following a period of extreme protectionism, the administration’s pivot toward a 90-day tariff suspension sparked a relief rally that saw the index test the psychological 7,000 mark. However, by the market close on March 9, 2026, much of that optimism has been tempered by a surge in crude oil prices, leaving investors to weigh the benefits of trade peace against the threat of renewed inflation.
This pivot in trade policy represents a significant strategic shift for the Trump administration, moving away from the aggressive "Liberation Day" tariffs that have defined the last year of economic discourse. While the "total reset" initially unleashed a wave of buying across the industrial and technology sectors, the immediate market reaction has since evolved into a complex tug-of-war between declining trade costs and escalating geopolitical risks in the Middle East.
The "total reset" rhetoric began to take shape following high-level negotiations in Switzerland over the weekend of March 1–2, 2026. Treasury Secretary Scott Bessent met with Chinese Vice Premier He Lifeng to establish an "off-ramp" for a trade war that had reached a fever pitch. On Monday, March 2, President Trump took to social media to announce the breakthrough, characterizing the deal as a 90-day pause on the most aggressive duties. Under the terms of the agreement, the U.S. began cutting duties on a broad range of Chinese goods from an average of 145% down to 30%, while Beijing reciprocated by slashing its retaliatory tariffs from 125% to 10%.
This sudden de-escalation was not entirely voluntary; it followed a landmark February 20, 2026, Supreme Court ruling in Learning Resources, Inc. v. Trump. The Court found that the administration’s use of emergency powers to implement the triple-digit "Liberation Day" tariffs on April 2, 2025, exceeded constitutional authority. Faced with a legal void, the "total reset" provided the administration with a diplomatic framework to maintain a baseline of protectionism while avoiding a chaotic, unregulated return to pre-2025 trade levels.
The market's initial reaction was electric. During the first few days of March, the S&P 500 "coiled" upward, breaking out of a narrow range as institutional investors front-runned what appeared to be a "soft landing" for the global supply chain. By the morning of March 6, the rally gained further momentum on reports of a massive commercial aviation agreement, signaling that the trade reset was being backed by significant capital commitments.
The clearest winner of this policy shift has been The Boeing Company (NYSE: BA). Shares of the aerospace giant jumped over 4% on March 6 following reports of a "mega-deal" involving the sale of 500 737 MAX jets to Chinese carriers. This order, one of the largest in aviation history, is viewed as the centerpiece of a planned presidential state visit to Beijing later this spring. For Boeing, which has struggled with supply chain bottlenecks and trade-related exclusions from the Chinese market, this "reset" offers a vital lifeline and a massive boost to its long-term backlog.
In the technology sector, Apple Inc. (NASDAQ: AAPL) saw immediate relief from the removal of the unconstitutional "Liberation Day" tariffs. The company had been facing a 25% levy on its primary hardware imports, and the 90-day suspension allows for a critical margin expansion as it rolls out the new iPhone 17e and M5-equipped MacBooks. However, by March 9, Apple shares faced pressure, slipping toward $254 as rising 10-year Treasury yields—hitting approximately 4.19%—curbed the valuation multiples of high-growth tech stocks.
Conversely, the outlook for Nvidia Corporation (NASDAQ: NVDA) remains "murky" despite the trade thaw. While the "total reset" allows for broader trade, the administration simultaneously introduced new volume caps on high-end AI hardware. Reports on March 3 suggested a limit of 75,000 H200 chips per Chinese customer to prevent the rapid construction of massive supercomputer clusters. This "managed trade" approach led to intraday reversals for Nvidia, as investors struggled to price the trade-off between renewed market access and strict per-customer quotas.
The "total reset" is a significant departure from the historical precedents of the 2018–2019 trade wars. Unlike the previous "Phase One" agreements, this de-escalation is occurring against a backdrop of domestic legal challenges and a more fragmented global economy. It signals a recognition that triple-digit tariffs may be unsustainable both legally and economically in a high-inflation environment. This event fits into a broader industry trend of "friend-shoring" and "de-risking," where trade is not fully free, but rather managed through complex quotas and sector-specific exclusions.
The ripple effects are already being felt by regional competitors. As the U.S. and China de-escalate, manufacturing hubs in Vietnam and Mexico may see a temporary cooling of the investment surge they enjoyed during the height of the tariff war. Furthermore, the 20% levy that remains intact for fentanyl-related enforcement and the continuing tariffs on steel and aluminum suggest that the "total reset" is less about returning to globalization and more about stabilizing a "managed competition" model.
Historically, such pivots have often preceded periods of market consolidation. The comparison to the 2019 "truce" is apt, but the current stakes are higher given the 2026 fiscal landscape. The Supreme Court's intervention serves as a reminder of the increasing role of the judiciary in trade policy, potentially limiting the executive branch's ability to use "national security" as a blanket justification for economic shifts in the future.
Looking ahead, the next 90 days will be a "prove-it" period for both Washington and Beijing. The short-term possibility of a finalized trade treaty hinges on the success of President Trump's upcoming state visit. If the 500-jet Boeing deal and similar agricultural purchases are codified, the S&P 500 could see a sustained move back toward record highs. However, the market must first navigate the "March 9 Pivot," where trade optimism was overshadowed by the escalating conflict with Iran.
The strategic pivot required for investors now involves balancing "trade peace" plays with "inflation hedge" assets. If WTI crude oil remains above $100 per barrel due to tensions in the Strait of Hormuz, the cost-savings from lower Chinese tariffs may be entirely offset by rising energy and transport costs. Market participants should prepare for a scenario where "stagflation" becomes the dominant narrative, regardless of the success of the trade reset.
The events of early March 2026 have provided a masterclass in market complexity. The "total reset" in trade relations with China offered a much-needed reprieve for the S&P 500, yet the rally’s fragility was exposed by the sudden surge in energy prices on March 9. The key takeaway for investors is that while trade policy is moving toward a more predictable "managed" state, the external shocks of geopolitics remain the primary driver of market volatility.
Moving forward, the market appears to be transitioning from a "trade war" regime to a "geopolitical risk" regime. Investors should closely monitor the implementation of the 90-day tariff suspension and the details of the Boeing mega-deal, but keep a wary eye on the energy sector and Treasury yields. In the coming months, the ability of the global economy to absorb $100+ oil will likely be a greater determinant of market direction than any single trade communique from the White House.
This content is intended for informational purposes only and is not financial advice
