Underfolio

Every trading day › 1988

The stock market on April 13, 1988

April 13, 1988, a Wednesday. The S&P 500 rose 0.08% to close at 271.58. Of 6,245 US stocks that traded, 1,735 rose and 2,009 fell.

The S&P 500+0.08%closed at 271.58
How big a move#22,548of 24,799 trading days since 1928
$100 in the index since$2,837price only, to September 24, 2026
Stocks that rose1,735of 6,245; 2,009 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for4stocks

Biggest rises among the 500 largest companies

Hca Hosp Cp Of Amer -cl A (HCA)+6.7%
Cons Papers (CDP)+5.7%
Pfizer (PFE)+5.7%

Biggest falls among the 500 largest companies

General Instrument (GIC)-3.9%
Northrop Grumman (NOC)-3.6%
Armstrong Holdings (ACK)-3.6%

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

‹ April 12, 1988 · Every April 13 · April 14, 1988 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.