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Amazon is now the most valuable public company in the world, passing Microsoft

Lauren Feiner
  • Amazon surpassed Microsoft as the largest company by market value on Monday.
  • The companies have been in a tight race with Apple and Alphabet for the title.
  • Amazon's market value is now about $799 billion.

Amazon AMZN is now the largest company by market value, overtaking Microsoft's MSFT hold on the title .

Amazon's market value was about $799 billion Monday, compared with Microsoft's $791 billion. Apple AAPL , which had been part of a close three-way race for the seat, is now down to about $699 billion in market value after plunging last week on the news of its weak iPhone sales. Google parent company Alphabet GOOGL has surpassed Apple with a market value of about $747 billion.

Amazon's stock was up about 3.5 percent on Monday, trading around $1,632 per share, while Microsoft was up just over 1 percent at around $103 per share. Microsoft announced Monday it was working with Kroger to take on Amazon's cashierless Amazon Go stores with its own take.

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