U.S. equities rallied on Monday, adding an estimated $1.1 trillion in market capitalization as broad-based buying lifted major benchmarks and growth shares. The S&P 500 rose about 1.5%, its best session since 27 May, finishing at the day’s high. The Nasdaq-100 advanced roughly 1.9%, the Dow Jones Industrial Average gained 1.3% and the small-cap Russell 2000 jumped 2.2%, according to closing heat-map data. Technology names dominated the advance, with Meta Platforms and Nvidia among the strongest performers. Market breadth was described as “super-strong,” and the Cboe Volatility Index briefly tested 18, suggesting improving risk appetite.