Underfolio

Every trading day › 1988

The stock market on May 17, 1988

May 17, 1988, a Tuesday. The S&P 500 fell 1.28% to close at 255.39. Of 6,220 US stocks that traded, 1,612 rose and 2,127 fell.

The S&P 500-1.28%closed at 255.39
How big a move#4,095of 24,799 trading days since 1928
$100 in the index since$3,017price only, to September 24, 2026
Stocks that rose1,612of 6,220; 2,127 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Wheelabrator Technologies (WTI)+3.8%
Pharmacia (PNU)+3.2%
Pe Corp-Pe Biosy (PEB)+2.2%

Biggest falls among the 500 largest companies

TJX Companies, Inc. (The) (TJX)-6.4%
Cray Research (CYR)-6.3%
Media General Inc -old (MEG)-5.5%

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

‹ May 16, 1988 · Every May 17 · May 18, 1988 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.