The stock market on May 20, 1991
May 20, 1991, a Monday. The S&P 500 fell 0.03% to close at 372.28. Of 5,689 US stocks that traded, 1,608 rose and 1,828 fell.
The S&P 500-0.03%closed at 372.28
How big a move#23,875of 24,799 trading days since 1928
$100 in the index since$2,069price only, to September 24, 2026
Stocks that rose1,608of 5,689; 1,828 fell
Biggest companyExxon Mobilby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| St Jude Medical (STJ) | +4.3% |
| KeyCorp (KEY) | +4.1% |
| Dow Chemical (DOW) | +3.9% |
Biggest falls among the 500 largest companies
| Reebok International (RBK) | -7.6% |
| Apple (AAPL) | -5.6% |
| Texas Instruments (TXN) | -5.6% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 17, 1991 · Every May 20 · May 21, 1991 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.