U.S. equity markets are experiencing a cautious afternoon on Tuesday, September 30, 2025, as major indexes retreated slightly. This modest pullback follows two consecutive days of gains and a robust September, which saw the S&P 500 (SPX) on track for its fifth straight winning month. The subdued trading activity is largely attributed to mounting anxiety over a potential federal government shutdown, with a critical deadline looming at midnight ET tonight.Major Index Performance and Sectoral ShiftsAs of after ...