Underfolio

Every trading day › 1989

The stock market on December 12, 1989

December 12, 1989, a Tuesday. The S&P 500 rose 0.91% to close at 351.73. Of 5,874 US stocks that traded, 1,673 rose and 1,845 fell.

The S&P 500+0.91%closed at 351.73
How big a move#6,846of 24,799 trading days since 1928
$100 in the index since$2,190price only, to September 24, 2026
Stocks that rose1,673of 5,874; 1,845 fell
Biggest companyExxon Mobilby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Laboratory Corp. of America (LH)+6.7%
ConocoPhillips (P)+5.6%
Unocal Corporation (UCL)+5.1%

Biggest falls among the 500 largest companies

Apple (AAPL)-8.3%
Midlantic Corp (MIDL)-7.1%
Pitney Bowes (PBI)-6.9%

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

‹ December 11, 1989 · Every December 12 · December 13, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.