Microsoft has surpassed Apple as the world's most valuable company.Apple shares have dropped around 23% due to the delay in its promised Siri and other AI features, as well as increased U.S. import tariffs.Microsoft's market cap is now $2.64 trillion, while Apple's stands at $2.59 trillion.UBS analysts predict that the price of the iPhone 16 Pro Max could increase as much as $350 in the U.S.