The stock market on October 31, 1984
October 31, 1984, a Wednesday. The S&P 500 fell 0.45% to close at 166.09. Of 5,755 US stocks that traded, 1,409 rose and 1,749 fell.
The S&P 500-0.45%closed at 166.09
How big a move#13,388of 24,799 trading days since 1928
$100 in the index since$4,639price only, to September 24, 2026
Stocks that rose1,409of 5,755; 1,749 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks
Biggest rises among the 500 largest companies
| Searle G D & (SRL) | +7.3% |
| Pioneer Corp-Texas (PNA) | +5.1% |
| Ceridian Corp (CEN) | +4.6% |
Biggest falls among the 500 largest companies
| FirstEnergy (FE) | -5.6% |
| Alexander/Baldwn (ALEX) | -5.4% |
| Telerate Inc (TLR) | -4.9% |
Stock moves count dividends; the index is price only. Market values after 2024 are estimates.
‹ October 30, 1984 · Every October 31 · November 1, 1984 ›
Ask the Lab what came after a day like thisHistory, not advice. How these numbers are made.