The stock market on September 13, 1984
September 13, 1984, a Thursday. The S&P 500 rose 1.98% to close at 167.94. Of 5,793 US stocks that traded, 2,236 rose and 1,075 fell.
The S&P 500+1.98%closed at 167.94
How big a move#1,713of 24,799 trading days since 1928
$100 in the index since$4,587price only, to September 24, 2026
Stocks that rose2,236of 5,793; 1,075 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| Sedco (SED) | +10.0% |
| Pacific Lumber Co | +8.3% |
| Manufactures Hanover (MHC) | +8.0% |
Biggest falls among the 500 largest companies
| Harris (HRS) | -8.6% |
| Freeport-McMoran (FTX) | -3.6% |
| UST Inc. (UST) | -3.1% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ September 12, 1984 · Every September 13 · September 14, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.