Underfolio

Every trading day › 1991

The stock market on November 20, 1991

November 20, 1991, a Wednesday. The S&P 500 fell 0.23% to close at 378.53. Of 5,776 US stocks that traded, 2,131 rose and 1,635 fell.

The S&P 500-0.23%closed at 378.53
How big a move#18,117of 24,799 trading days since 1928
$100 in the index since$2,035price only, to September 24, 2026
Stocks that rose2,131of 5,776; 1,635 fell
Biggest companyExxon Mobilby market value that day

Biggest rises among the 500 largest companies

Biogen Inc-Old (BGEN)+7.8%
Biomet (BMET)+6.6%
Borland Software Corp (BORL)+6.3%

Biggest falls among the 500 largest companies

Tenet Healthcare (THC)-10.8%
Hershey (HSY)-5.9%
Reebok International (RBK)-4.9%

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

‹ November 19, 1991 · Every November 20 · November 21, 1991 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.