The stock market on May 20, 1977
May 20, 1977, a Friday. The S&P 500 fell 0.43% to close at 99.45. Of 4,685 US stocks that traded, 1,001 rose and 1,357 fell.
The S&P 500-0.43%closed at 99.45
How big a move#13,745of 24,799 trading days since 1928
$100 in the index since$7,747price only, to September 24, 2026
Stocks that rose1,001of 4,685; 1,357 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Aramark Corp -cl B | +3.3% |
| Missouri Pacific Rr | +2.8% |
| Mgm Grand Hotels Inc (GRH) | +2.3% |
Biggest falls among the 500 largest companies
| Caliber System (CBB) | -5.6% |
| Briggs & Stratton (BGG) | -3.9% |
| Dome Petroleum Ltd (DMP) | -3.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 19, 1977 · Every May 20 · May 23, 1977 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.