Underfolio

Every trading day › 1978

The stock market on September 25, 1978

September 25, 1978, a Monday. The S&P 500 rose 0.02% to close at 101.86. Of 4,552 US stocks that traded, 1,146 rose and 1,392 fell.

The S&P 500+0.02%closed at 101.86
How big a move#24,101of 24,799 trading days since 1928
$100 in the index since$7,563price only, to September 24, 2026
Stocks that rose1,146of 4,552; 1,392 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Carrier (CRR)+32.9%
Amf Inc (AMF)+5.2%
Olin (OLN)+5.1%

Biggest falls among the 500 largest companies

Vulcan Materials (VMC)-8.2%
Griffin GAMING&ENTMT (GGE)-7.4%
Willamette Industries (WLL)-4.4%

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

‹ September 22, 1978 · Every September 25 · September 26, 1978 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.