The stock market on October 21, 2021
October 21, 2021, a Thursday. The S&P 500 rose 0.30% to close at 4549.78. Of 4,371 US stocks that traded, 2,201 rose and 2,021 fell.
The S&P 500+0.30%closed at 4549.78
How big a move#16,542of 24,799 trading days since 1928
$100 in the index since$169price only, to September 24, 2026
Stocks that rose2,201of 4,371; 2,021 fell
Biggest companyAppleby market value that day
Biggest rises among the 500 largest companies
| Match Group (MTCH) | +10.3% |
| Olaplex Holdings (OLPX) | +7.8% |
| Pool Corporation (POOL) | +7.6% |
Biggest falls among the 500 largest companies
| International Business Machines Corporation (IBM) | -9.6% |
| Discover Financial (DFS) | -6.1% |
| Kinder Morgan (KMI) | -6.0% |
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.