Underfolio

Every trading day › 1980

The stock market on August 5, 1980

August 5, 1980, a Tuesday. The S&P 500 fell 0.20% to close at 120.74. Of 4,569 US stocks that traded, 1,528 rose and 1,286 fell.

The S&P 500-0.20%closed at 120.74
How big a move#19,089of 24,799 trading days since 1928
$100 in the index since$6,381price only, to September 24, 2026
Stocks that rose1,528of 4,569; 1,286 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Delhi Intl Oil Corp (DLH)+16.7%
RadioShack (TAN)+6.7%
Snap-On (SNA)+6.5%

Biggest falls among the 500 largest companies

Cox Communications Inc -old (COX.)-6.0%
Boeing (BA)-4.5%
Jefferson-Pilot (JP)-4.4%

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

‹ August 4, 1980 · Every August 5 · August 6, 1980 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.