Underfolio

Every trading day › 1984

The stock market on December 26, 1984

December 26, 1984, a Wednesday. The S&P 500 fell 0.17% to close at 166.47. Of 5,762 US stocks that traded, 1,429 rose and 1,553 fell.

The S&P 500-0.17%closed at 166.47
How big a move#19,761of 24,799 trading days since 1928
$100 in the index since$4,628price only, to September 24, 2026
Stocks that rose1,429of 5,762; 1,553 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Murphy Oil Corporation (MUR)+8.9%
Combustion Engineering (CSP)+6.1%
KeySpan (KSE)+3.8%

Biggest falls among the 500 largest companies

Fluor (FLR)-3.3%
PNM Resources, Inc. (Holding Co.) (PNM)-3.0%
Parker-Hannifin (PH)-2.7%

Stock moves count dividends; the index is price only. Market values after 2024 are estimates.

‹ December 24, 1984 · Every December 26 · December 27, 1984 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.