The stock market on August 17, 2021
August 17, 2021, a Tuesday. The S&P 500 fell 0.71% to close at 4448.08. Of 4,310 US stocks that traded, 1,221 rose and 2,963 fell.
The S&P 500-0.71%closed at 4448.08
How big a move#9,182of 24,799 trading days since 1928
$100 in the index since$173price only, to September 24, 2026
Stocks that rose1,221of 4,310; 2,963 fell
Biggest companyAppleby market value that day
Biggest rises among the 500 largest companies
| Applovin (APP) | +12.0% |
| Moderna, Inc. (MRNA) | +7.5% |
| Kroger (KR) | +4.6% |
Biggest falls among the 500 largest companies
| Lowe's (LOW) | -5.8% |
| Freeport-McMoRan (FCX) | -5.8% |
| Generac Holdings (GNRC) | -4.9% |
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.