NEW YORK (AP) -- Exxon (NYSE:XOM) has surpassed Apple (NASDAQ:AAPL) as world's most valuable company after the tech company's stock falls.

Apple's stock has been falling since an earnings report on Wednesday. It fell another 1.8 percent on Friday to $442.60 for a market capitalization of $415.6 billion. ExxonMobil was mostly unchanged and has a market capitalization of $416.2 billion.

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