Underfolio

Every trading day › 1984

The stock market on November 20, 1984

November 20, 1984, a Tuesday. The S&P 500 rose 0.67% to close at 164.18. Of 5,756 US stocks that traded, 1,541 rose and 1,602 fell.

The S&P 500+0.67%closed at 164.18
How big a move#9,725of 24,799 trading days since 1928
$100 in the index since$4,692price only, to September 24, 2026
Stocks that rose1,541of 5,756; 1,602 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Signal Companies (SGN)+5.0%
National Semiconductor (NSM)+4.4%
Norton Simon (NSI)+4.4%

Biggest falls among the 500 largest companies

Baxter International (BAX)-4.7%
Marsh & McLennan (MMC)-3.4%
Shoney's Inc-3.1%

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

‹ November 19, 1984 · Every November 20 · November 21, 1984 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.