The stock market on May 12, 1978
May 12, 1978, a Friday. The S&P 500 rose 0.90% to close at 98.07. Of 4,579 US stocks that traded, 1,880 rose and 815 fell.
The S&P 500+0.90%closed at 98.07
How big a move#6,974of 24,799 trading days since 1928
$100 in the index since$7,856price only, to September 24, 2026
Stocks that rose1,880of 4,579; 815 fell
Biggest companyAT&T Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Cit Group Inc-Old (CIT) | +9.3% |
| Richardson-Vicks Inc (RVI) | +6.9% |
| Merrill Lynch (MER) | +6.5% |
Biggest falls among the 500 largest companies
| Sedco (SED) | -6.7% |
| CNA Financial Corporation (CNA) | -4.2% |
| Pogo Producing Co (PPP) | -3.6% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 11, 1978 · Every May 12 · May 15, 1978 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.