Underfolio

Every trading day › 1991

The stock market on September 13, 1991

September 13, 1991, a Friday. The S&P 500 fell 0.97% to close at 383.59. Of 5,730 US stocks that traded, 1,575 rose and 1,965 fell.

The S&P 500-0.97%closed at 383.59
How big a move#6,312of 24,799 trading days since 1928
$100 in the index since$2,008price only, to September 24, 2026
Stocks that rose1,575of 5,730; 1,965 fell
Biggest companyExxon Mobilby market value that day
Last day of trading for4stocks

Biggest rises among the 500 largest companies

Dun & Bradstreet Holdngs Inc (DNB)+3.9%
Hasbro (HAS)+3.8%
Forest Laboratories (FRX)+3.8%

Biggest falls among the 500 largest companies

Marion Merrell Dow Inc (MKC)-21.7%
Intel (INTC)-13.6%
Oracle (ORCL)-6.6%

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

‹ September 12, 1991 · Every September 13 · September 16, 1991 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.