All three major U.S. equity indices finished positive for a fourth straight month, with the S&P 500 recording its largest February gain in nearly a decade. Stocks primarily rallied on broadening investor appetites for artificial intelligence (AI) related technology companies, with its bellwether leading AI chipmaker supporting the theme with blockbuster better-than-expected quarterly earnings growth. The tech-heavy Nasdaq Composite surged over 6.2% for the month, finishing February at it first all-time closing high since November 2021.