On March 23, 2026, U.S. stocks were poised for a significant rally at the opening bell following President Donald Trump's announcement that he would postpone all military strikes on Iranian power plants for a five-day period [1]. This decision came after Trump had issued an ultimatum to Iran on Saturday, demanding the full opening of the Strait of Hormuz within 48 hours, with the deadline set to expire Monday night [1].
Following Trump's announcement, S&P 500 and Nasdaq futures initially soared about 3%, but gains faded to around 2% after Iranian state media responded, stating that the U.S. president had "backed down" and relaying from Iran's foreign ministry that "there is no dialogue between Tehran and Washington" [1]. Dow Jones Industrial Average futures rose as much as 1,300 points immediately after Trump's statement, before pulling back to about 975 points. Russell 2000 futures also rose 3% [1].
Oil prices experienced a sharp decline, with U.S. crude oil dropping nearly 10% to around $89 per barrel and international Brent crude falling to approximately $101 per barrel. Despite this drop, crude oil prices had risen nearly 40% since the war began on February 28, and 60% since the start of the year [1]. U.S. natural gas prices fell 4%, European natural gas futures slid 9%, and heating oil prices dropped 3%, with heating oil futures serving as a proxy for jet fuel prices [1].
U.S. Treasury bonds rose in the minutes after Trump's comments, causing yields—which guide borrowing rates for consumers—to drop after previously climbing on inflation fears due to soaring energy prices. Yields remained largely unchanged after the Iranian media statements [1]. UBS economist Paul Donovan noted that investors face volatility due to contradictory statements from U.S. officials and the lack of measurable objectives in the Gulf war, making it difficult for markets to price risks accurately [1].
CONCLUSION
The postponement of U.S. military action against Iran initially triggered a strong rally in U.S. stock futures and a sharp drop in energy prices, but conflicting reports from Iranian media tempered market enthusiasm. Investors remain challenged by volatility and uncertainty, as contradictory official statements and unclear objectives continue to drive rapid market swings.