The stock market on September 23, 2025
September 23, 2025, a Tuesday. The S&P 500 fell 0.55% to close at 6656.92. Of 3,532 US stocks that traded, 1,358 rose and 2,068 fell.
The S&P 500-0.55%closed at 6656.92
How big a move#11,585of 24,799 trading days since 1928
$100 in the index since$116price only, to September 24, 2026
Stocks that rose1,358of 3,532; 2,068 fell
Biggest companyNvidiaby market value that day
Biggest rises among the 500 largest companies
| Halliburton (HAL) | +7.3% |
| Mckesson Corp (MCK) | +6.4% |
| Rocket Lab USA (RKLB) | +6.2% |
Biggest falls among the 500 largest companies
| Bloom Energy Corp (BE) | -10.3% |
| Affirm Holdings (AFRM) | -8.2% |
| Reddit, Inc. (RDDT) | -7.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
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Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.