Amazon Takes Market Cap Crown, Cementing Tech Power

Software giant, at $797 billion, surpasses Microsoft with $784 billion in value

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Amazon.com Inc. is the latest technology titan to claim the crown of world’s most valuable public company, signaling the industry’s enduring market dominance even after turbulent months in which investors pummeled their shares.

Amazon finished Monday’s session up 3.4% at $1,629.51, with a market capitalization of $796.78 billion, the first time the retailer has attained the market-cap title. It ended a weekslong reign by Microsoft Corp., which finished up 0.1% with a value of $783.57 billion.

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