The stock market on August 21, 2023
August 21, 2023, a Monday. The S&P 500 rose 0.69% to close at 4399.77. Of 4,179 US stocks that traded, 1,754 rose and 2,273 fell.
The S&P 500+0.69%closed at 4399.77
How big a move#9,438of 24,799 trading days since 1928
$100 in the index since$175price only, to September 24, 2026
Stocks that rose1,754of 4,179; 2,273 fell
Biggest companyAppleby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Palo Alto Networks, Inc. (PANW) | +14.8% |
| Moderna, Inc. (MRNA) | +9.3% |
| Nvidia (NVDA) | +8.5% |
Biggest falls among the 500 largest companies
| Insulet (PODD) | -4.2% |
| Estee Lauder (EL) | -3.7% |
| Bill.com Holdings, Inc. (BILL) | -3.1% |
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.