Underfolio

Every trading day › 1991

The stock market on October 11, 1991

October 11, 1991, a Friday. The S&P 500 rose 0.24% to close at 381.45. Of 5,752 US stocks that traded, 1,943 rose and 1,584 fell.

The S&P 500+0.24%closed at 381.45
How big a move#18,059of 24,799 trading days since 1928
$100 in the index since$2,020price only, to September 24, 2026
Stocks that rose1,943of 5,752; 1,584 fell
Biggest companyExxon Mobilby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

U S Healthcare Inc (USHC)+10.4%
Hilton Worldwide Holdings (HLT)+6.4%
Fluor (FLR)+5.4%

Biggest falls among the 500 largest companies

Sempra Energy (SRE)-7.9%
Owens Corning (OWC)-5.9%
PPG Industries (PPG)-5.6%

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

‹ October 10, 1991 · Every October 11 · October 14, 1991 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.