Stock futures are little changed after Dow posts worst session since March 2023: Live updates CNBCDow tumbles, S&P 500 flashing a warning signal: Market takeaways Yahoo FinanceDow down 511 points on losses for shares of Boeing, Intel MarketWatchU.S. Markets Declined Thursday; Lincoln Electric Took Biggest Hit Barron’sBoeing, Intel share losses lead Dow’s nearly 350-point fall MSN