Underfolio

Every trading day › 1978

The stock market on December 20, 1978

December 20, 1978, a Wednesday. The S&P 500 rose 0.47% to close at 94.68. Of 4,538 US stocks that traded, 1,408 rose and 950 fell.

The S&P 500+0.47%closed at 94.68
How big a move#13,032of 24,799 trading days since 1928
$100 in the index since$8,137price only, to September 24, 2026
Stocks that rose1,408of 4,538; 950 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Olin (OLN)+7.1%
Litton Industries (LIT)+6.7%
Archer Daniels Midland (ADM)+6.7%

Biggest falls among the 500 largest companies

Reliance Electric Co -old (REE)-5.4%
Bally Entertainment (BLY)-3.7%
Broadway Stores Inc (BWY)-3.5%

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

‹ December 19, 1978 · Every December 20 · December 21, 1978 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.