Exxon surpasses Apple as world's most valuable co.

UPDATED 12:27 PM EST, January 25, 2013

NEW YORK (AP) — Exxon has surpassed Apple as world's most valuable company after tech company's stock falls.

Apple Inc.'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. Exxon Mobil Corp. was mostly unchanged and has a market capitalization of $416.2 billion.

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