Microsoft's market value soared as much as $154 billion in just a day. That nearly matched Jeff Bezos' entire fortune.

• Microsoft gained as much as $154 billion in market cap in a single day after unveiling the Copilot subscription service. 
• That figure is almost as large as Jeff Bezos's entire fortune. 
• The tech giant is poised to become the second company ever to reach a $3 trillion valuation, according to Morgan Stanley. 

In a single day, Microsoft's market value soared as much as $154 billion – that's practically the entire fortune of Jeff Bezos, the world's third-richest person.