Underfolio

Every trading day › 1988

The stock market on May 11, 1988

May 11, 1988, a Wednesday. The S&P 500 fell 1.67% to close at 253.31. Of 6,226 US stocks that traded, 811 rose and 3,287 fell.

The S&P 500-1.67%closed at 253.31
How big a move#2,448of 24,799 trading days since 1928
$100 in the index since$3,041price only, to September 24, 2026
Stocks that rose811of 6,226; 3,287 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

BankAmerica Corp.+5.2%
Target (TGT)+4.4%
Unocal Exploration Corp (UXC)+3.3%

Biggest falls among the 500 largest companies

Pe Corp-Pe Biosy (PEB)-5.7%
Ryder System (R)-5.4%
Bear Stearns (BSC)-5.1%

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

‹ May 10, 1988 · Every May 11 · May 12, 1988 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.