The stock market on April 27, 1971
April 27, 1971, a Tuesday. The S&P 500 rose 0.63% to close at 104.59. Of 2,311 US stocks that traded, 1,014 rose and 910 fell.
The S&P 500+0.63%closed at 104.59
How big a move#10,357of 24,799 trading days since 1928
$100 in the index since$7,366price only, to September 24, 2026
Stocks that rose1,014of 2,311; 910 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Natomas Co (NOM) | +10.3% |
| Braniff International Corp (BNF) | +8.6% |
| Tektronix (TEK) | +7.9% |
Biggest falls among the 500 largest companies
| Walt Disney (DIS) | -10.4% |
| Bunker Ramo Corp (BR) | -6.6% |
| Winn-Dixie Stores (WIN) | -4.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ April 26, 1971 · Every April 27 · April 28, 1971 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.