The stock market on September 11, 1984
September 11, 1984, a Tuesday. The S&P 500 rose 0.12% to close at 164.45. Of 5,789 US stocks that traded, 1,868 rose and 1,362 fell.
The S&P 500+0.12%closed at 164.45
How big a move#21,405of 24,799 trading days since 1928
$100 in the index since$4,685price only, to September 24, 2026
Stocks that rose1,868of 5,789; 1,362 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| J.P. Morgan Chase & Co. (CMB) | +5.5% |
| Walt Disney (DIS) | +4.8% |
| RiteAid (RAD) | +4.7% |
Biggest falls among the 500 largest companies
| Owens-Illinois (OI) | -4.7% |
| Texas Instruments (TXN) | -4.6% |
| Honeywell (HON.Z) | -4.5% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
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Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.