The stock market on December 27, 1984
December 27, 1984, a Thursday. The S&P 500 fell 0.43% to close at 165.75. Of 5,763 US stocks that traded, 1,266 rose and 1,857 fell.
The S&P 500-0.43%closed at 165.75
How big a move#13,708of 24,799 trading days since 1928
$100 in the index since$4,648price only, to September 24, 2026
Stocks that rose1,266of 5,763; 1,857 fell
Biggest companyInternational Business Machines Corporationby market value that day
Biggest rises among the 500 largest companies
| Cordant Technologies Inc (CDD) | +3.3% |
| GenCorp (GY) | +3.0% |
| Grumman Corp. (GQ) | +2.4% |
Biggest falls among the 500 largest companies
| Toys R Us (TOY) | -15.0% |
| NiSource (NI) | -13.5% |
| Petrie Stores Liquidation Tr | -7.0% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ December 26, 1984 · Every December 27 · December 28, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.