The stock market on September 17, 1985
September 17, 1985, a Tuesday. The S&P 500 fell 0.83% to close at 181.36. Of 5,708 US stocks that traded, 925 rose and 2,745 fell.
The S&P 500-0.83%closed at 181.36
How big a move#7,675of 24,799 trading days since 1928
$100 in the index since$4,248price only, to September 24, 2026
Stocks that rose925of 5,708; 2,745 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Rhone-Poulenc Rorer (RPR) | +5.1% |
| Burlington Industries Equity | +4.3% |
| Winn-Dixie Stores (WIN) | +3.8% |
Biggest falls among the 500 largest companies
| Multimedia Inc (MMEDC) | -7.5% |
| BankBoston (BKB) | -6.5% |
| Pan Am Corp | -6.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 16, 1985 · Every September 17 · September 18, 1985 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.