Amazon (AMZN) shares surged 5.5 percent, closing at a record $286.39 and far outpacing the broader market, as the Nasdaq Composite rose 0.9 percent to 25,608 and the S&P 500 gained 0.7 percent to 7,543.

The rally reflects a re-rating of Amazon's core businesses. Amazon Web Services (AWS) remains the dominant force in cloud infrastructure, with analysts projecting accelerated revenue growth through the second half of the year. Enterprise spending trends point to sustained demand for scalable cloud solutions, benefiting AWS directly. The company's e-commerce segment continues to hold ground, using its logistics network and Prime membership to capture market share.

Amazon trades at 38 times forward earnings—a premium to its historical average, but one analysts say is supported by the company's free cash flow generation and market leadership. Several sell-side analysts recently raised their price targets for AMZN, citing expanding advertising revenue and efficiency gains across operations.

The move in Amazon was part of a broad rally in large-cap technology. Microsoft (MSFT) rose 5.0 percent to $487.86, Alphabet (GOOGL) climbed 4.8 percent to $373.31 and Meta Platforms (META) advanced 5.2 percent to $585.65. The sector-wide strength points to a rotation into quality growth names with strong balance sheets and diversified revenue streams.