Underfolio

Every trading day › 1987

The stock market on October 7, 1987

October 7, 1987, a Wednesday. The S&P 500 fell 0.21% to close at 318.54. Of 6,392 US stocks that traded, 1,442 rose and 2,635 fell.

The S&P 500-0.21%closed at 318.54
How big a move#18,676of 24,799 trading days since 1928
$100 in the index since$2,419price only, to September 24, 2026
Stocks that rose1,442of 6,392; 2,635 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Emerson Electric (EMR)+7.3%
H&R Block (HRB)+6.9%
Humana (HUM)+5.1%

Biggest falls among the 500 largest companies

L Brands (LTD)-10.7%
Pharmacia (PNU)-4.8%
Sonoco Products (SON)-4.2%

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

‹ October 6, 1987 · Every October 7 · October 8, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.