The stock market on January 23, 1991
January 23, 1991, a Wednesday. The S&P 500 rose 0.58% to close at 330.21. Of 5,723 US stocks that traded, 2,147 rose and 1,297 fell.
The S&P 500+0.58%closed at 330.21
How big a move#11,078of 24,799 trading days since 1928
$100 in the index since$2,333price only, to September 24, 2026
Stocks that rose2,147of 5,723; 1,297 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Laboratory Corp. of America (LH) | +12.3% |
| Fluor (FLR) | +7.7% |
| Dresser Industries Inc (DI.) | +7.3% |
Biggest falls among the 500 largest companies
| CA Technologies (CA) | -14.3% |
| Conner Peripherals (CNR) | -10.5% |
| CBS Inc (CBS) | -7.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ January 22, 1991 · Every January 23 · January 24, 1991 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.