Underfolio

Every trading day › 1987

The stock market on October 2, 1987

October 2, 1987, a Friday. The S&P 500 rose 0.23% to close at 328.07. Of 6,392 US stocks that traded, 2,167 rose and 1,839 fell.

The S&P 500+0.23%closed at 328.07
How big a move#18,357of 24,799 trading days since 1928
$100 in the index since$2,348price only, to September 24, 2026
Stocks that rose2,167of 6,392; 1,839 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for4stocks

Biggest rises among the 500 largest companies

Eex Corp (EEX)+12.4%
BankAmerica Corp.+8.8%
Sun Microsystems (SUNW)+8.7%

Biggest falls among the 500 largest companies

Rockwell Automation (ROK)-3.6%
Deluxe Corporation (DLX)-3.1%
Santa Fe Pacific Corp. (SFX)-2.9%

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

‹ October 1, 1987 · Every October 2 · October 5, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.