The stock market on August 23, 1984
August 23, 1984, a Thursday. The S&P 500 rose 0.04% to close at 167.12. Of 5,798 US stocks that traded, 1,611 rose and 1,570 fell.
The S&P 500+0.04%closed at 167.12
How big a move#23,690of 24,799 trading days since 1928
$100 in the index since$4,610price only, to September 24, 2026
Stocks that rose1,611of 5,798; 1,570 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| OfficeMax (BCC) | +6.2% |
| Teradyne, Inc. (TER) | +5.5% |
| Pioneer Hi-Bred International, Inc. (PHB) | +5.5% |
Biggest falls among the 500 largest companies
| Dome Mines (DM) | -3.6% |
| PG&E Corp. (PCG) | -3.5% |
| Cigna (CI) | -3.4% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 22, 1984 · Every August 23 · August 24, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.