Underfolio

Every trading day › 1987

The stock market on October 30, 1987

October 30, 1987, a Friday. The S&P 500 rose 2.87% to close at 251.79. Of 6,363 US stocks that traded, 4,276 rose and 642 fell.

The S&P 500+2.87%closed at 251.79
How big a move#753of 24,799 trading days since 1928
$100 in the index since$3,060price only, to September 24, 2026
Stocks that rose4,276of 6,363; 642 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for5stocks

Biggest rises among the 500 largest companies

Viacom Inc (VIA)+26.0%
Illinois Tool Works (ITW)+21.4%
Stone Container (STO)+18.5%

Biggest falls among the 500 largest companies

Berkshire Hathaway (BRK)-14.2%
Usg Corp. (USG)-6.0%
Pirme Motor Inns (PDQ)-5.7%

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

‹ October 29, 1987 · Every October 30 · November 2, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.