The stock market on October 16, 1985
October 16, 1985, a Wednesday. The S&P 500 rose 1.02% to close at 187.98. Of 5,720 US stocks that traded, 2,061 rose and 1,323 fell.
The S&P 500+1.02%closed at 187.98
How big a move#5,849of 24,799 trading days since 1928
$100 in the index since$4,098price only, to September 24, 2026
Stocks that rose2,061of 5,720; 1,323 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Cabot Corporation (CBT) | +14.9% |
| Viacomcbs Inc (VIAC) | +9.6% |
| NL Industries, Inc. (NL) | +8.7% |
Biggest falls among the 500 largest companies
| Sterling Drug (STY) | -3.1% |
| Dover (DOV) | -2.9% |
| Security Pacific Corp | -2.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 15, 1985 · Every October 16 · October 17, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.