Underfolio

Every trading day › 1984

The stock market on March 30, 1984

March 30, 1984, a Friday. The S&P 500 fell 0.21% to close at 159.18. Of 5,727 US stocks that traded, 1,483 rose and 1,643 fell.

The S&P 500-0.21%closed at 159.18
How big a move#18,672of 24,799 trading days since 1928
$100 in the index since$4,840price only, to September 24, 2026
Stocks that rose1,483of 5,727; 1,643 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Occidental Petroleum (OXY)+11.0%
Tie/Communications Inc (TIE)+7.5%
CNA Financial Corporation (CNA)+6.3%

Biggest falls among the 500 largest companies

Ceridian Corp (CEN)-5.1%
American International Group, Inc. (AIG)-4.5%
Reynolds Metals (RLM)-4.1%

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

‹ March 29, 1984 · Every March 30 · April 2, 1984 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.