The stock market on May 28, 1971
May 28, 1971, a Friday. The S&P 500 rose 0.23% to close at 99.63. Of 2,320 US stocks that traded, 1,017 rose and 793 fell.
The S&P 500+0.23%closed at 99.63
How big a move#18,202of 24,799 trading days since 1928
$100 in the index since$7,733price only, to September 24, 2026
Stocks that rose1,017of 2,320; 793 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Maxxam (MAXX) | +12.4% |
| Winnebago Industries, Inc. (WGO) | +7.3% |
| Technicon Corp (TCN) | +6.6% |
Biggest falls among the 500 largest companies
| Levi Strauss (LEVI) | -4.5% |
| Crown Holdings (CCK) | -3.5% |
| Mattel (MAT) | -3.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 27, 1971 · Every May 28 · June 1, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.