Underfolio

Every trading day › 1987

The stock market on November 11, 1987

November 11, 1987, a Wednesday. The S&P 500 rose 1.21% to close at 241.90. Of 6,349 US stocks that traded, 2,337 rose and 1,690 fell.

The S&P 500+1.21%closed at 241.90
How big a move#4,479of 24,799 trading days since 1928
$100 in the index since$3,185price only, to September 24, 2026
Stocks that rose2,337of 6,349; 1,690 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Illinois Tool Works (ITW)+10.4%
BankBoston (BKB)+10.2%
Telerate Inc (TLR)+8.1%

Biggest falls among the 500 largest companies

Cray Research (CYR)-5.8%
Santa Fe Pacific Corp. (SFX)-4.6%
American Airlines Group (AMR)-4.4%

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

‹ November 10, 1987 · Every November 11 · November 12, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.