Underfolio

Every trading day › 1975

The stock market on September 9, 1975

September 9, 1975, a Tuesday. The S&P 500 fell 1.50% to close at 84.60. Of 4,640 US stocks that traded, 833 rose and 1,670 fell.

The S&P 500-1.50%closed at 84.60
How big a move#3,067of 24,799 trading days since 1928
$100 in the index since$9,107price only, to September 24, 2026
Stocks that rose833of 4,640; 1,670 fell
Biggest companyAT&T Corporationby market value that day

Biggest rises among the 500 largest companies

Square "d" (SQD)+5.9%
Northwestern STL&WIRE (NWSW)+5.5%
Kaiser Steel Corp+4.9%

Biggest falls among the 500 largest companies

Utah International (UC)-12.0%
General Dynamics (GD)-8.7%
RadioShack (TAN)-8.4%

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

‹ September 8, 1975 · Every September 9 · September 10, 1975 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.