The stock market on September 20, 2021
September 20, 2021, a Monday. The S&P 500 fell 1.70% to close at 4357.73. Of 4,327 US stocks that traded, 607 rose and 3,606 fell.
The S&P 500-1.70%closed at 4357.73
How big a move#2,369of 24,799 trading days since 1928
$100 in the index since$177price only, to September 24, 2026
Stocks that rose607of 4,327; 3,606 fell
Biggest companyAppleby market value that day
Biggest rises among the 500 largest companies
| Lucid Group (LCID) | +4.8% |
| American Airlines Group (AAL) | +3.0% |
| Seattle Genetics, Inc. (SGEN) | +1.8% |
Biggest falls among the 500 largest companies
| AMC Entertainment Holdings, Inc. (AMC) | -8.8% |
| Ginkgo Bioworks (DNA) | -8.8% |
| Nucor (NUE) | -7.6% |
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.