The stock market on October 9, 2023
October 9, 2023, a Monday. The S&P 500 rose 0.63% to close at 4335.66. Of 4,148 US stocks that traded, 2,095 rose and 1,907 fell.
The S&P 500+0.63%closed at 4335.66
How big a move#10,280of 24,799 trading days since 1928
$100 in the index since$178price only, to September 24, 2026
Stocks that rose2,095of 4,148; 1,907 fell
Biggest companyAppleby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Northrop Grumman (NOC) | +11.4% |
| Harris (LHX) | +10.0% |
| Lockheed Martin (LMT) | +8.9% |
Biggest falls among the 500 largest companies
| United Continental Holdings (UAL) | -4.9% |
| Alnylam Pharmaceuticals, Inc. (ALNY) | -4.9% |
| Delta Air Lines (DAL) | -4.7% |
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.