Underfolio

Every trading day › 1988

The stock market on June 23, 1988

June 23, 1988, a Thursday. The S&P 500 fell 0.30% to close at 274.82. Of 6,200 US stocks that traded, 1,851 rose and 1,890 fell.

The S&P 500-0.30%closed at 274.82
How big a move#16,428of 24,799 trading days since 1928
$100 in the index since$2,803price only, to September 24, 2026
Stocks that rose1,851of 6,200; 1,890 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Rhone-Poulenc Rorer (RPR)+5.8%
Auto Data Proc (AUD)+5.6%
Liz Claiborne (LIZ)+5.6%

Biggest falls among the 500 largest companies

American Medical Int'l (AMI)-4.1%
G-I Holdings Inc-3.6%
Columbia Energy Group-3.4%

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

‹ June 22, 1988 · Every June 23 · June 24, 1988 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.