Underfolio

Every trading day › 1973

The stock market on March 21, 1973

March 21, 1973, a Wednesday. The S&P 500 fell 1.30% to close at 110.49. Of 5,087 US stocks that traded, 839 rose and 2,387 fell.

The S&P 500-1.30%closed at 110.49
How big a move#3,987of 24,799 trading days since 1928
$100 in the index since$6,973price only, to September 24, 2026
Stocks that rose839of 5,087; 2,387 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Amerifin Corp (AFN)+3.4%
Monroe Auto Equip (MAE)+2.5%
Browning-Ferris Industries (BFI.)+2.0%

Biggest falls among the 500 largest companies

Winnebago Industries, Inc. (WGO)-9.4%
Data General Corp (DGN.)-8.6%
Teleprompter Corp (TP)-7.4%

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

‹ March 20, 1973 · Every March 21 · March 22, 1973 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.