President Donald Trump's address to the United Nations General Assembly on September 22, 2026, was a focal point for financial markets, especially concerning the ongoing seven-month conflict with Iran. Investors closely watched for any indications of a shift towards diplomacy or further escalation, as the conflict has significantly disrupted energy flows, particularly through the Strait of Hormuz, which handles approximately 20% of the world's oil supply. Brent crude prices were hovering around $100 a barrel before the speech, reflecting market sensitivity to the geopolitical tensions.
During his speech, Trump outlined what he called a "big decision" regarding Iran: either pursuing a negotiated settlement that could allow Iran to rebuild or considering military action to "annihilate the Islamic Republic." He predicted a deal could be reached after the midterm elections, asserting that Iran was stalling negotiations to see the election outcome. Trump also urged global economic isolation of Tehran until it ceases attacks on commercial shipping, abandons nuclear ambitions, and ends support for militant groups.
Oil prices reacted to the prospect of diplomacy. Brent crude had fallen 3.4% to $100.34 a barrel on Monday due to hopes for progress at the UNGA, but rose above $102 in early Tuesday trading before settling lower. WTI futures and Brent crude futures both fell for a fifth consecutive day on Tuesday, with WTI down 0.5% and Brent down 0.4% at midday. U.S. equities also saw mixed reactions; the SPDR S&P 500 ETF (SPY) traded flat, the SPDR Dow Jones Industrial Average ETF (DIA) slipped 0.42%, and the Nasdaq-100-tracking Invesco QQQ Trust (QQQ) moved 0.44% higher.
Mediators like Qatar have been working to bridge the "deep deficit of trust" between Washington and Tehran. Qatari Foreign Ministry spokesperson Majed al-Ansari stated that the conflict would eventually end at the negotiating table, emphasizing that the only difference was the "number of dead and destruction." Trump also used his speech to address other topics, including calling drug cartels "the ISIS of the Western Hemisphere," labeling Cuba an "absolutely failed state," and discussing artificial intelligence, which he rechristened "superintelligence."
Trump's approval rating on foreign affairs was notably low, with a CNN/SSRS poll showing 71% disapproval, and 76% of voters believing the war in Iran was not worth its cost. Despite these domestic pressures, the primary focus for investors and global leaders at the UNGA remained the future of the Iran conflict and its implications for oil markets and international stability.
