The stock market on August 9, 2021
August 9, 2021, a Monday. The S&P 500 fell 0.09% to close at 4432.35. Of 4,306 US stocks that traded, 1,816 rose and 2,334 fell.
The S&P 500-0.09%closed at 4432.35
How big a move#22,009of 24,799 trading days since 1928
$100 in the index since$174price only, to September 24, 2026
Stocks that rose1,816of 4,306; 2,334 fell
Biggest companyAppleby market value that day
Biggest rises among the 500 largest companies
| Moderna, Inc. (MRNA) | +17.1% |
| Novavax, Inc. (NVAX) | +12.2% |
| Roblox (RBLX) | +9.7% |
Biggest falls among the 500 largest companies
| Elanco Animal Health Incorporated (ELAN) | -16.1% |
| Air Products & Chem. (APD) | -5.2% |
| Darden Restaurants (DRI) | -4.5% |
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.