S&P 500 Hits 7,509 as AI Sectors Top 50% Weight: JPM

The S&P 500 advanced to 7,508.99 (+0.87%) on May 14, with JPMorgan reporting AI-related industries now exceeding 50% of index weight, led by semiconductors at 18.2%. This builds on May 11 revelations of a narrow AI-driven rally, where AI stocks hit 45% market cap amid +15.5% gains since March 30 and flat ex-AI performance (-1.84% for SPXXAI). May 13 saw the index close at 7,444.25 (+0.58%), fueled by KKR's large-cap AI productivity edge over small caps (IJR -0.37%) and surging AI trading bots.