The stock market on August 17, 2023
August 17, 2023, a Thursday. The S&P 500 fell 0.77% to close at 4370.36. Of 4,184 US stocks that traded, 1,319 rose and 2,720 fell.
The S&P 500-0.77%closed at 4370.36
How big a move#8,361of 24,799 trading days since 1928
$100 in the index since$176price only, to September 24, 2026
Stocks that rose1,319of 4,184; 2,720 fell
Biggest companyAppleby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Moderna, Inc. (MRNA) | +7.4% |
| Chesapeake Enrgy (CHK) | +4.4% |
| Cisco Systems (CSCO) | +3.3% |
Biggest falls among the 500 largest companies
| Builders FirstSource (BLDR) | -11.7% |
| Palantir Tech (PLTR) | -8.4% |
| CVS Health (CVS) | -8.1% |
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.