Underfolio

Every trading day › 1971

The stock market on April 19, 1971

April 19, 1971, a Monday. The S&P 500 rose 0.50% to close at 104.01. Of 2,308 US stocks that traded, 1,015 rose and 905 fell.

The S&P 500+0.50%closed at 104.01
How big a move#12,410of 24,799 trading days since 1928
$100 in the index since$7,407price only, to September 24, 2026
Stocks that rose1,015of 2,308; 905 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Lone Star Industries (LCE)+5.2%
S&P Global (MHP)+5.1%
Ethyl (NEU)+4.8%

Biggest falls among the 500 largest companies

Whittaker Corp (WKR)-7.2%
Honeywell (HON.Z)-5.2%
General Dynamics (GD)-4.8%

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

‹ April 16, 1971 · Every April 19 · April 20, 1971 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.