The stock market on October 21, 1991
October 21, 1991, a Monday. The S&P 500 fell 0.63% to close at 390.02. Of 5,755 US stocks that traded, 1,549 rose and 2,114 fell.
The S&P 500-0.63%closed at 390.02
How big a move#10,260of 24,799 trading days since 1928
$100 in the index since$1,975price only, to September 24, 2026
Stocks that rose1,549of 5,755; 2,114 fell
Biggest companyExxon Mobilby market value that day
Biggest rises among the 500 largest companies
| Safety-Kleen Corp-Old (SK) | +6.9% |
| Oracle (ORCL) | +6.2% |
| United States Surgical Corporation (USS) | +6.0% |
Biggest falls among the 500 largest companies
| Sun Microsystems (SUNW) | -10.3% |
| Deluxe Corporation (DLX) | -9.8% |
| PNC Financial Services (PNC) | -6.0% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 18, 1991 · Every October 21 · October 22, 1991 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.