Underfolio

Every trading day › 1985

The stock market on March 20, 1985

March 20, 1985, a Wednesday. The S&P 500 fell 0.26% to close at 179.08. Of 5,721 US stocks that traded, 1,510 rose and 1,846 fell.

The S&P 500-0.26%closed at 179.08
How big a move#17,561of 24,799 trading days since 1928
$100 in the index since$4,302price only, to September 24, 2026
Stocks that rose1,510of 5,721; 1,846 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

CBS Inc (CBS)+8.4%
Amerada Hess (AHC)+7.3%
Sysco (SYY)+5.4%

Biggest falls among the 500 largest companies

Homestake Mining (HM)-7.9%
DSC Communications (DIGI)-7.4%
Campbell Red Lake Mines (CRK)-7.1%

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

‹ March 19, 1985 · Every March 20 · March 21, 1985 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.