Underfolio

Every trading day › 1977

The stock market on April 18, 1977

April 18, 1977, a Monday. The S&P 500 fell 0.49% to close at 100.54. Of 4,681 US stocks that traded, 1,040 rose and 1,345 fell.

The S&P 500-0.49%closed at 100.54
How big a move#12,546of 24,799 trading days since 1928
$100 in the index since$7,663price only, to September 24, 2026
Stocks that rose1,040of 4,681; 1,345 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Allegheny Technologies (ATI)+4.3%
Anderson Clayton & Co (AYL)+4.1%
Certainteed Corp+3.7%

Biggest falls among the 500 largest companies

Chrysler Corp (C)-5.6%
Xerox (XRX)-4.9%
MeadWestvaco (W)-4.5%

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

‹ April 15, 1977 · Every April 18 · April 19, 1977 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.