Dow, S&P 500, Nasdaq Futures Slip 0.1% Amid US-Iran Deal Uncertainty

US stock futures fell about 0.1% in overnight trading on May 26, signaling a cautious start for Wednesday’s session, as investors parsed mixed signals on a US-Iran peace deal. Contracts tied to the Dow Jones Industrial Average (YM=F), S&P 500 (ES=F), and Nasdaq 100 (NQ=F) each edged lower. The dip followed record closes for the S&P 500 and Nasdaq Composite on May 26, driven by optimism that the US and Iran could soon end hostilities. But Secretary of State Marco Rubio afterward cautioned that an agreement would likely take several days to formalize, and the Strait of Hormuz—a critical oil chokepoint—remains largely closed to commercial vessels, clouding supply outlooks. Traders also looked ahead to a raft of earnings on May 27. Marvell Technology (MRVL), Salesforce (CRM), Snowflake (SNOW), and Abercrombie & Fitch (ANF) are slated to report results, as the quarterly earnings season winds down with broad support for equity valuations.