The stock market on December 18, 1984
December 18, 1984, a Tuesday. The S&P 500 rose 2.75% to close at 168.11. Of 5,766 US stocks that traded, 2,730 rose and 868 fell.
The S&P 500+2.75%closed at 168.11
How big a move#826of 24,799 trading days since 1928
$100 in the index since$4,583price only, to September 24, 2026
Stocks that rose2,730of 5,766; 868 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock
Biggest rises among the 500 largest companies
| DSC Communications (DIGI) | +12.0% |
| Harcourt General (H) | +11.5% |
| Apollo Computer Inc (APCI.) | +11.2% |
Biggest falls among the 500 largest companies
| Energy Future Holdings (TXU) | -4.2% |
| JCPenney (JCP) | -3.0% |
| Pennzoil (PZE) | -2.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ December 17, 1984 · Every December 18 · December 19, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.