Underfolio

Every trading day › 1981

The stock market on April 10, 1981

April 10, 1981, a Friday. The S&P 500 fell 0.12% to close at 134.51. Of 4,778 US stocks that traded, 1,782 rose and 1,237 fell.

The S&P 500-0.12%closed at 134.51
How big a move#21,301of 24,799 trading days since 1928
$100 in the index since$5,728price only, to September 24, 2026
Stocks that rose1,782of 4,778; 1,237 fell
Biggest companyAT&T Corporationby market value that day

Biggest rises among the 500 largest companies

Pittston Brinks (PZB)+8.2%
National Semiconductor (NSM)+6.4%
Tom Brown Inc (TMBR)+6.3%

Biggest falls among the 500 largest companies

Cray Research (CYR)-6.1%
Smith International (SII)-5.3%
Mesa Inc (MXP.)-3.9%

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

‹ April 9, 1981 · Every April 10 · April 13, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.