Underfolio

Every trading day › 2025

The stock market on May 27, 2025

May 27, 2025, a Tuesday. The S&P 500 rose 2.05% to close at 5921.54. Of 3,532 US stocks that traded, 2,783 rose and 668 fell.

The S&P 500+2.05%closed at 5921.54
How big a move#1,596of 24,799 trading days since 1928
$100 in the index since$130price only, to September 24, 2026
Stocks that rose2,783of 3,532; 668 fell
Biggest companyMicrosoftby market value that day

Biggest rises among the 500 largest companies

Hologic (HOLX)+14.5%
Rocket Lab USA (RKLB)+13.1%
Deckers Brands (DECK)+7.8%

Biggest falls among the 500 largest companies

Fair Isaac (FICO)-11.3%
Verisign (VRSN)-3.6%
AutoZone (AZO)-3.4%

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

‹ May 23, 2025 · Every May 27 · May 28, 2025 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.