Exxon overtakes Apple in market value again NEW YORK - Exxon Mobil briefly overtook Apple as the largest U.S. publicly traded company by market value on Friday as shares of the technology giant continued to fall. Apple shares traded down 2 percent on the day at $441.31, down from a high above $700 set in September, for a market value of roughly $416 billion. Exxon shares, flat on the day at $91.33, added to a market value of about $416.5 billion. Apple has closed the day as the largest company by market capitalization since late January last year, when it passed Exxon. Reporting by Rodrigo Campos; Editing by James Dalgleish