The stock market on August 9, 1984
August 9, 1984, a Thursday. The S&P 500 rose 2.34% to close at 165.54. Of 5,789 US stocks that traded, 2,366 rose and 1,054 fell.
The S&P 500+2.34%closed at 165.54
How big a move#1,190of 24,799 trading days since 1928
$100 in the index since$4,654price only, to September 24, 2026
Stocks that rose2,366of 5,789; 1,054 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Burns Intl Services Corp (BOR) | +11.0% |
| Advanced Micro Devices (AMD) | +9.0% |
| Great Western Financial (GWF.) | +8.1% |
Biggest falls among the 500 largest companies
| L Brands (LTD) | -5.9% |
| Caliber System (CBB) | -4.8% |
| UST Inc. (UST) | -4.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ August 8, 1984 · Every August 9 · August 10, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.