The stock market on December 19, 2025
December 19, 2025, a Friday. The S&P 500 rose 0.88% to close at 6834.50. Of 3,523 US stocks that traded, 1,788 rose and 1,652 fell.
The S&P 500+0.88%closed at 6834.50
How big a move#7,108of 24,799 trading days since 1928
$100 in the index since$113price only, to September 24, 2026
Stocks that rose1,788of 3,523; 1,652 fell
Biggest companyNvidiaby market value that day
Biggest rises among the 500 largest companies
| Rocket Lab USA (RKLB) | +17.7% |
| AST SpaceMobile, Inc. (ASTS) | +15.0% |
| Astera Labs, Inc. (ALAB) | +12.7% |
Biggest falls among the 500 largest companies
| Nike, Inc. (NKE) | -10.5% |
| Lowe's (LOW) | -2.9% |
| Hudson Bay Mng & Smlt (HD) | -2.8% |
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.