Where Data Tells the Story
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Through November 24, 2025, the S&P 500 gained $7.5 trillion in market value, a 14.4% increase year-to-date. Four major AI-linked companies accounted for half of the index’s total gains:
· Alphabet: 20.0% of total S&P 500 gains ($1.51T)
· Nvidia: 15.2% ($1.15T)
· Broadcom: 9.3% ($0.70T)
· Microsoft: 5.2% ($0.39T)
Together, these four companies contributed 49.7% of the index’s rise. The remaining six companies in the top-10 contributors added a combined 13.0% ($0.98T).