The stock market on May 6, 1988
May 6, 1988, a Friday. The S&P 500 fell 0.51% to close at 257.48. Of 6,228 US stocks that traded, 1,723 rose and 1,978 fell.
The S&P 500-0.51%closed at 257.48
How big a move#12,342of 24,799 trading days since 1928
$100 in the index since$2,992price only, to September 24, 2026
Stocks that rose1,723of 6,228; 1,978 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| KeySpan (KSE) | +8.6% |
| Marion Merrell Dow Inc (MKC) | +7.3% |
| American Medical Int'l (AMI) | +6.7% |
Biggest falls among the 500 largest companies
| Genentech Inc (DNA) | -8.2% |
| Pharmacia (PNU) | -5.7% |
| Emhart Corp (EMH) | -5.7% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 5, 1988 · Every May 6 · May 9, 1988 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.