Underfolio

Every trading day › 1979

The stock market on October 15, 1979

October 15, 1979, a Monday. The S&P 500 fell 1.08% to close at 103.36. Of 4,505 US stocks that traded, 435 rose and 2,432 fell.

The S&P 500-1.08%closed at 103.36
How big a move#5,385of 24,799 trading days since 1928
$100 in the index since$7,454price only, to September 24, 2026
Stocks that rose435of 4,505; 2,432 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Gulf United Corp (GHC)+9.9%
Masonite Corp (MNC)+4.4%
Rollins (ROL)+4.2%

Biggest falls among the 500 largest companies

Howard Johnson (HJ)-10.8%
Gatx (GMT)-5.9%

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

‹ October 12, 1979 · Every October 15 · October 16, 1979 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.