The stock market on May 20, 1970
May 20, 1970, a Wednesday. The S&P 500 fell 2.57% to close at 73.52. Of 2,253 US stocks that traded, 226 rose and 1,761 fell.
The S&P 500-2.57%closed at 73.52
How big a move#968of 24,799 trading days since 1928
$100 in the index since$10,479price only, to September 24, 2026
Stocks that rose226of 2,253; 1,761 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| R.R. Donnelley & Sons (DNY) | +8.0% |
| Pe Corp-Pe Biosy (PEB) | +3.8% |
Biggest falls among the 500 largest companies
| Honeywell (HON.Z) | -16.0% |
| Nalco Chemical Co (NLC) | -12.5% |
| Reynolds Metals (RLM) | -12.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ May 19, 1970 · Every May 20 · May 21, 1970 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.