The stock market on September 21, 2026
September 21, 2026, a Monday. The S&P 500 rose 1.49% to close at 7764.70. Of 3,326 US stocks that traded, 1,742 rose and 1,470 fell.
The S&P 500+1.49%closed at 7764.70
How big a move#3,106of 24,799 trading days since 1928
$100 in the index since$99.22price only, to September 24, 2026
Stocks that rose1,742of 3,326; 1,470 fell
Biggest companyNvidiaby market value that day
Biggest rises among the 500 largest companies
| Astera Labs, Inc. (ALAB) | +12.4% |
| Akamai Technologies (AKAM) | +12.3% |
| Digitaloceanhldg (DOCN) | +12.3% |
Biggest falls among the 500 largest companies
| Hf Sinclair (DINO) | -5.7% |
| Summit Therapeutics PLC (SMMT) | -5.3% |
| Marathon Petroleum (MPC) | -5.3% |
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.