The stock market on May 20, 2026
May 20, 2026, a Wednesday. The S&P 500 rose 1.08% to close at 7432.97. Of 3,402 US stocks that traded, 2,484 rose and 819 fell.
The S&P 500+1.08%closed at 7432.97
How big a move#5,403of 24,799 trading days since 1928
$100 in the index since$104price only, to September 24, 2026
Stocks that rose2,484of 3,402; 819 fell
Biggest companyNvidiaby market value that day
Biggest rises among the 500 largest companies
| Astera Labs, Inc. (ALAB) | +17.7% |
| Guardant Health Inc (GH) | +17.1% |
| Summit Therapeutics PLC (SMMT) | +12.9% |
Biggest falls among the 500 largest companies
| Hasbro (HAS) | -8.8% |
| Nutanix Inc (NTNX) | -6.7% |
| Reddit, Inc. (RDDT) | -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.