U.S. stock futures and major indexes experienced significant declines as fears surrounding escalating military actions against Iran, coupled with rising inflation, sent waves through the market. The Dow Jones Industrial Average dropped over 900 points, closing below the 50,000 mark amid a sell-off in tech and semiconductor stocks, as investors reacted to a new round of U.S. strikes on Iran. Concurrently, the S&P 500 and Nasdaq also recorded steep losses. Analysts are highlighting the worsening climate of uncertainty fueled by geopolitical tensions and inflation data, with oil prices surging as a result. Overall, the market is signaling a heightened risk-off sentiment as participants brace for further developments.