The stock market on August 17, 2026
August 17, 2026, a Monday. The S&P 500 fell 0.52% to close at 7745.06. Of 3,335 US stocks that traded, 1,051 rose and 2,193 fell.
The S&P 500-0.52%closed at 7745.06
How big a move#12,091of 24,799 trading days since 1928
$100 in the index since$99.47price only, to September 24, 2026
Stocks that rose1,051of 3,335; 2,193 fell
Biggest companyNvidiaby market value that day
Biggest rises among the 500 largest companies
| Coherent, Inc. (COHR) | +7.8% |
| Comfort Systems USA Inc (FIX) | +6.0% |
| Onto Innovation Inc. (ONTO) | +5.9% |
Biggest falls among the 500 largest companies
| Reddit, Inc. (RDDT) | -7.6% |
| Charter Communications (CHTR) | -6.6% |
| Constellation Brands (STZ) | -6.2% |
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.