The stock market on January 20, 1984
January 20, 1984, a Friday. The S&P 500 fell 0.50% to close at 166.21. Of 5,645 US stocks that traded, 1,242 rose and 2,102 fell.
The S&P 500-0.50%closed at 166.21
How big a move#12,502of 24,799 trading days since 1928
$100 in the index since$4,635price only, to September 24, 2026
Stocks that rose1,242of 5,645; 2,102 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks
Biggest rises among the 500 largest companies
| Noram Energy Corp | +7.7% |
| Shell Oil | +5.5% |
| Amerada Hess (AHC) | +4.1% |
Biggest falls among the 500 largest companies
| Teradyne, Inc. (TER) | -5.3% |
| Intel (INTC) | -5.0% |
| American Medical Int'l (AMI) | -4.8% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ January 19, 1984 · Every January 20 · January 23, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.