CONCLUDED Stock Market News for Monday, Sept. 15, 2025: S&P 500, Nasdaq Close At Records. The Mag 7 Drives the Rally. Memberships Last Updated: 1 hour ago S&P 500, Nasdaq Hit Records as Mag 7 Stocks Drive the Rally By Connor Smith Megacap tech stocks powered the major indexes higher as Wall Street continued to set records with a big interest-rate decision looming later this week. The Dow Jones Industrial Average rose 50 points, or 0.1%. The S&P 500 gained 0.5%. The Nasdaq Composite rallied 0.9%. Both the S& ...