The stock market on June 20, 1984
June 20, 1984, a Wednesday. The S&P 500 rose 1.46% to close at 154.84. Of 5,785 US stocks that traded, 1,572 rose and 1,586 fell.
The S&P 500+1.46%closed at 154.84
How big a move#3,241of 24,799 trading days since 1928
$100 in the index since$4,976price only, to September 24, 2026
Stocks that rose1,572of 5,785; 1,586 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Allegheny Technologies (ATI) | +7.9% |
| Burns Intl Services Corp (BOR) | +7.8% |
| Tandem Computers Inc (TDM.) | +7.3% |
Biggest falls among the 500 largest companies
| Great Northern Nekoosa (GNN) | -5.9% |
| Freeport-McMoran (FTX) | -5.0% |
| Telerate Inc (TLR) | -3.9% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ June 19, 1984 · Every June 20 · June 21, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.