The stock market on February 12, 1991
February 12, 1991, a Tuesday. The S&P 500 fell 0.84% to close at 365.50. Of 5,707 US stocks that traded, 1,800 rose and 1,865 fell.
The S&P 500-0.84%closed at 365.50
How big a move#7,630of 24,799 trading days since 1928
$100 in the index since$2,108price only, to September 24, 2026
Stocks that rose1,800of 5,707; 1,865 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| U S Healthcare Inc (USHC) | +10.2% |
| Boatmen's Bancshares (BOAT) | +9.1% |
| Illinova Corp (ILN) | +7.9% |
Biggest falls among the 500 largest companies
| Boeing (BA) | -6.1% |
| Ashland (ASH) | -5.1% |
| Oracle (ORCL) | -5.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ February 11, 1991 · Every February 12 · February 13, 1991 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.