Underfolio

Every trading day › 1987

The stock market on October 5, 1987

October 5, 1987, a Monday. The S&P 500 rose 0.00% to close at 328.08. Of 6,390 US stocks that traded, 1,876 rose and 2,049 fell.

The S&P 500+0.00%closed at 328.08
How big a move#24,442of 24,799 trading days since 1928
$100 in the index since$2,348price only, to September 24, 2026
Stocks that rose1,876of 6,390; 2,049 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Lotus Development Corp (LOTS.)+10.1%
Microsoft (MSFT)+9.0%
U S Shoe Corp (USR)+8.4%

Biggest falls among the 500 largest companies

BankAmerica Corp.-5.1%
Williams (WMB)-4.3%
Coastal-3.9%

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

‹ October 2, 1987 · Every October 5 · October 6, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.