The stock market on May 9, 1990
May 9, 1990, a Wednesday. The S&P 500 rose 0.25% to close at 342.86. Of 5,853 US stocks that traded, 1,745 rose and 1,800 fell.
The S&P 500+0.25%closed at 342.86
How big a move#17,760of 24,799 trading days since 1928
$100 in the index since$2,247price only, to September 24, 2026
Stocks that rose1,745of 5,853; 1,800 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Sun Microsystems (SUNW) | +9.7% |
| Homestake Mining (HM) | +5.9% |
| Newmont Gold Co (NGC) | +5.6% |
Biggest falls among the 500 largest companies
| Circuit City Stores (CC) | -4.5% |
| Delhaize America Inc | -3.6% |
| PNC Financial Services (PNC) | -3.3% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 8, 1990 · Every May 9 · May 10, 1990 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.