Underfolio

Every trading day › 1971

The stock market on March 15, 1971

March 15, 1971, a Monday. The S&P 500 rose 1.14% to close at 100.71. Of 2,303 US stocks that traded, 1,356 rose and 589 fell.

The S&P 500+1.14%closed at 100.71
How big a move#4,891of 24,799 trading days since 1928
$100 in the index since$7,650price only, to September 24, 2026
Stocks that rose1,356of 2,303; 589 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Esmark (ESM)+7.0%
American General (AGC)+6.8%
Arlen Corp (ARRD)+6.1%

Biggest falls among the 500 largest companies

Abbott Laboratories (ABT)-3.5%
Avery Dennison (AVY)-3.3%
Martin Marietta (ML)-2.9%

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

‹ March 12, 1971 · Every March 15 · March 16, 1971 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.