The stock market on September 21, 2011
September 21, 2011, a Wednesday. The S&P 500 fell 2.94% to close at 1166.76. Of 4,019 US stocks that traded, 534 rose and 3,294 fell.
The S&P 500-2.94%closed at 1166.76
How big a move#701of 24,799 trading days since 1928
$100 in the index since$660price only, to September 24, 2026
Stocks that rose534of 4,019; 3,294 fell
Biggest companyAppleby market value that day
Biggest rises among the 500 largest companies
| Regeneron Pharmaceuticals (REGN) | +9.2% |
| Liberty Interact (LINTA) | +8.1% |
| HP Inc. (HPQ) | +6.7% |
Biggest falls among the 500 largest companies
| Alpha Natural Resources (ANR) | -17.2% |
| Cleveland-Cliffs Inc. (CLF) | -12.8% |
| Walter Energy Inc (WLT) | -11.7% |
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.