Underfolio

Every trading day › 1978

The stock market on September 13, 1978

September 13, 1978, a Wednesday. The S&P 500 fell 0.61% to close at 106.34. Of 4,543 US stocks that traded, 1,275 rose and 1,464 fell.

The S&P 500-0.61%closed at 106.34
How big a move#10,639of 24,799 trading days since 1928
$100 in the index since$7,245price only, to September 24, 2026
Stocks that rose1,275of 4,543; 1,464 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Griffin GAMING&ENTMT (GGE)+9.9%
Holiday Corp. (HIA)+8.2%
Ashland (ASH)+5.5%

Biggest falls among the 500 largest companies

Pan Am Corp-6.3%
Mallinckrodt Inc -old (MALL.)-5.3%
American Homes 4 Rent (AMH)-4.6%

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

‹ September 12, 1978 · Every September 13 · September 14, 1978 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.