The stock market on June 21, 1984
June 21, 1984, a Thursday. The S&P 500 fell 0.21% to close at 154.51. Of 5,793 US stocks that traded, 1,823 rose and 1,425 fell.
The S&P 500-0.21%closed at 154.51
How big a move#18,673of 24,799 trading days since 1928
$100 in the index since$4,986price only, to September 24, 2026
Stocks that rose1,823of 5,793; 1,425 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for5stocks
Biggest rises among the 500 largest companies
| Petrolane Inc (PTO) | +41.1% |
| Petrie Stores Liquidation Tr | +8.3% |
| Signal Companies (SGN) | +6.4% |
Biggest falls among the 500 largest companies
| Texas Eastern Corp | -10.7% |
| Tenet Healthcare (THC) | -4.7% |
| PG&E Corp. (PCG) | -4.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ June 20, 1984 · Every June 21 · June 22, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.