The stock market on December 28, 1984
December 28, 1984, a Friday. The S&P 500 rose 0.31% to close at 166.26. Of 5,764 US stocks that traded, 1,616 rose and 1,424 fell.
The S&P 500+0.31%closed at 166.26
How big a move#16,363of 24,799 trading days since 1928
$100 in the index since$4,634price only, to September 24, 2026
Stocks that rose1,616of 5,764; 1,424 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Marsh & McLennan (MMC) | +4.4% |
| Louisiana-Pacific (LPX) | +4.2% |
| UST Inc. (UST) | +4.0% |
Biggest falls among the 500 largest companies
| May Dept. Stores (MAY) | -6.8% |
| Petrie Stores Liquidation Tr | -6.0% |
| United Technologies (UTX) | -4.0% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ December 27, 1984 · Every December 28 · December 31, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.