The stock market on March 12, 1985
March 12, 1985, a Tuesday. The S&P 500 rose 0.49% to close at 179.66. Of 5,725 US stocks that traded, 1,610 rose and 1,703 fell.
The S&P 500+0.49%closed at 179.66
How big a move#12,691of 24,799 trading days since 1928
$100 in the index since$4,288price only, to September 24, 2026
Stocks that rose1,610of 5,725; 1,703 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| Petrie Stores Liquidation Tr | +5.1% |
| Coastal | +5.1% |
| Quantum Chemical (CUE) | +4.7% |
Biggest falls among the 500 largest companies
| Wang Labs Inc (WANG) | -14.0% |
| Digital Equipment (DEC) | -4.4% |
| Computervision Corp (CVN) | -4.3% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ March 11, 1985 · Every March 12 · March 13, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.