The combined market capitalization of major U.S. tech companies has surpassed $20 trillion, marking a new record. As of the latest trading session, the Nasdaq and S&P 500 indices reached all-time highs, with all three major U.S. stock indices rising over 1%. Leading the charge, NVIDIA, Google, Apple, Microsoft, and Amazon boast market caps of approximately $4.97 trillion, $4.82 trillion, $4.19 trillion, $3.08 trillion, and $2.96 trillion, respectively, contributing to a total of about $20.02 trillion. This figure represents 26% of the U.S. stock market's total valuation of $77 trillion. The dominance of tech giants is further highlighted by the top ten U.S. companies by market cap, which include TSMC, Meta Platforms, Tesla, and Walmart, collectively reaching a market cap of approximately $28.24 trillion.