The stock market on October 4, 1985
October 4, 1985, a Friday. The S&P 500 fell 0.62% to close at 183.22. Of 5,703 US stocks that traded, 1,384 rose and 1,960 fell.
The S&P 500-0.62%closed at 183.22
How big a move#10,461of 24,799 trading days since 1928
$100 in the index since$4,205price only, to September 24, 2026
Stocks that rose1,384of 5,703; 1,960 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Rhone-Poulenc Rorer (RPR) | +9.0% |
| Gould Inc (GLD) | +6.1% |
| Anheuser-Busch (BUD) | +3.9% |
Biggest falls among the 500 largest companies
| Unisys (UIS) | -12.2% |
| Genentech Inc (DNA) | -6.0% |
| Ncr Corp. (NCR) | -5.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 3, 1985 · Every October 4 · October 7, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.