The stock market on October 12, 1987
October 12, 1987, a Monday. The S&P 500 fell 0.54% to close at 309.39. Of 6,393 US stocks that traded, 1,116 rose and 2,999 fell.
The S&P 500-0.54%closed at 309.39
How big a move#11,759of 24,799 trading days since 1928
$100 in the index since$2,490price only, to September 24, 2026
Stocks that rose1,116of 6,393; 2,999 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Armco Inc (AS.) | +8.6% |
| Nordstrom (JWN) | +4.7% |
| Alcoa (AA) | +4.1% |
Biggest falls among the 500 largest companies
| Advanced Micro Devices (AMD) | -11.2% |
| McDonald's (MCD) | -5.2% |
| Auto Data Proc (AUD) | -5.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 9, 1987 · Every October 12 · October 13, 1987 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.