Underfolio

Every trading day › 1988

The stock market on March 21, 1988

March 21, 1988, a Monday. The S&P 500 fell 0.88% to close at 268.74. Of 6,260 US stocks that traded, 1,411 rose and 2,502 fell.

The S&P 500-0.88%closed at 268.74
How big a move#7,154of 24,799 trading days since 1928
$100 in the index since$2,867price only, to September 24, 2026
Stocks that rose1,411of 6,260; 2,502 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Olin (OLN)+11.5%
Kroger (KR)+10.0%
Maytag (MYG)+9.4%

Biggest falls among the 500 largest companies

Black & Decker (BDK)-4.9%
Polaroid (PRDCQ)-4.7%
W.R. Grace & Co. (GRA)-4.5%

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

‹ March 18, 1988 · Every March 21 · March 22, 1988 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.