The stock market on August 18, 1971
August 18, 1971, a Wednesday. The S&P 500 fell 1.39% to close at 98.60. Of 2,339 US stocks that traded, 519 rose and 1,471 fell.
The S&P 500-1.39%closed at 98.60
How big a move#3,560of 24,799 trading days since 1928
$100 in the index since$7,814price only, to September 24, 2026
Stocks that rose519of 2,339; 1,471 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Evans Products Co | +6.6% |
| Champion International (CHA) | +4.9% |
| Petrie Stores Liquidation Tr | +3.9% |
Biggest falls among the 500 largest companies
| Pan Am Corp | -8.3% |
| Allegheny Technologies (ATI) | -7.7% |
| Olin (OLN) | -7.2% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 17, 1971 · Every August 18 · August 19, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.