The stock market on May 18, 2026
May 18, 2026, a Monday. The S&P 500 fell 0.07% to close at 7403.05. Of 3,402 US stocks that traded, 1,815 rose and 1,489 fell.
The S&P 500-0.07%closed at 7403.05
How big a move#22,651of 24,799 trading days since 1928
$100 in the index since$104price only, to September 24, 2026
Stocks that rose1,815of 3,402; 1,489 fell
Biggest companyNvidiaby market value that day
Biggest rises among the 500 largest companies
| Roblox (RBLX) | +9.6% |
| Dominion Energy Inc (D) | +9.4% |
| Cognizant (CTSH) | +9.1% |
Biggest falls among the 500 largest companies
| Regeneron Pharmaceuticals (REGN) | -9.8% |
| Sterling Construction Co Inc (STRL) | -9.2% |
| Modine Manufacturing Co (MOD) | -8.9% |
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.