The stock market on October 15, 1985
October 15, 1985, a Tuesday. The S&P 500 fell 0.16% to close at 186.08. Of 5,720 US stocks that traded, 1,703 rose and 1,683 fell.
The S&P 500-0.16%closed at 186.08
How big a move#20,338of 24,799 trading days since 1928
$100 in the index since$4,140price only, to September 24, 2026
Stocks that rose1,703of 5,720; 1,683 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Colgate-Palmolive (CL) | +11.8% |
| MCI Communications (MCIC.) | +10.1% |
| Golden West Financial (GDW) | +8.8% |
Biggest falls among the 500 largest companies
| American Medical Int'l (AMI) | -5.9% |
| Dover (DOV) | -5.2% |
| UST Inc. (UST) | -4.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 14, 1985 · Every October 15 · October 16, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.