On July 2, Apple, Microsoft, and Amazon shares soared to new all-time highs during Tuesday's trading session. Microsoft reached a market capitalization of $3.42 trillion, while Apple's market cap hit $3.38 trillion. Nvidia recently became the world's most valuable company when it briefly surpassed Microsoft with a market capitalization of $3.34 trillion. Nvidia's valuation represented a record 11.7% of total US GDP at its peak on June 18, more than twice as high as Cisco's achievement in 2000. The combined stock market value of Microsoft, Apple, and Nvidia now stands at $10 trillion. Investors are optimistic about the future of these tech giants, with Nvidia's hardware seen as key to the online future.