Underfolio

Every trading day › 1986

The stock market on December 31, 1986

December 31, 1986, a Wednesday. The S&P 500 fell 0.49% to close at 242.17. Of 6,026 US stocks that traded, 2,191 rose and 1,675 fell.

The S&P 500-0.49%closed at 242.17
How big a move#12,579of 24,799 trading days since 1928
$100 in the index since$3,181price only, to September 24, 2026
Stocks that rose2,191of 6,026; 1,675 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for9stocks

Biggest rises among the 500 largest companies

Newmont Gold Co (NGC)+8.1%
Homestake Mining (HM)+5.7%
Campbell Red Lake Mines (CRK)+5.4%

Biggest falls among the 500 largest companies

Bank of America Corp. (BAC)-5.5%
DirecTV (GMH)-5.2%
CBS Corporation (CBS)-3.9%

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

‹ December 30, 1986 · Every December 31 · January 2, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.