The stock market on August 21, 1987
August 21, 1987, a Friday. The S&P 500 rose 0.32% to close at 335.90. Of 6,331 US stocks that traded, 2,138 rose and 1,831 fell.
The S&P 500+0.32%closed at 335.90
How big a move#16,169of 24,799 trading days since 1928
$100 in the index since$2,294price only, to September 24, 2026
Stocks that rose2,138of 6,331; 1,831 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| UST Inc. (UST) | +6.2% |
| Fortune Brands (FO) | +5.5% |
| Tele-Comm Tci Group -ser A (TCOMA) | +5.5% |
Biggest falls among the 500 largest companies
| Smithkline Beckman Corp (SKB) | -8.0% |
| Transamerica (TA) | -6.0% |
| American Medical Int'l (AMI) | -3.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 20, 1987 · Every August 21 · August 24, 1987 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.