Stock Market Today: S&P 500, Nasdaq 100 Futures Slip As Inflation Fears Grip Wall Street—XP, Atmos Energy, GE Aerospace In Focus

U.S. stock futures declined on Tuesday as inflation concerns weighed on markets. The S&P 500 and Nasdaq 100 fell slightly, with the 10-year Treasury yield at 4.60%. Key movers included XP Inc. dropping 6% on weak earnings, Atmos Energy surging 10% after strong Q2 results and dividend increase, and GE Aerospace gaining on a Japan Airlines maintenance deal. Analysts warn the Fed may shift to a tightening bias if inflation pressures persist.