Underfolio

Every trading day › 1976

The stock market on May 21, 1976

May 21, 1976, a Friday. The S&P 500 fell 0.73% to close at 101.26. Of 4,641 US stocks that traded, 1,032 rose and 1,425 fell.

The S&P 500-0.73%closed at 101.26
How big a move#8,941of 24,799 trading days since 1928
$100 in the index since$7,608price only, to September 24, 2026
Stocks that rose1,032of 4,641; 1,425 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Staley Continental Inc (STA)+4.9%
Transco Energy (E)+4.8%
Pe Corp-Pe Biosy (PEB)+4.5%

Biggest falls among the 500 largest companies

Rockwell Automation (ROK)-5.9%
CBS Inc (CBS)-4.5%
St Regis (SRT)-4.1%

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

‹ May 20, 1976 · Every May 21 · May 24, 1976 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.