Shares of Western Digital Corp. rallied in Wednesday's extended session after the maker of computer disk drives raised its quarterly earnings outlook. The company raised its fourth-quarter adjusted earnings per share estimate to about 72 cents versus 65 cents to 70 cents previously and boosted its revenue outlook to $3.46 billion from a range of $3.35 billion to $3.45 billion. Analysts surveyed by FactSet are projecting earnings of 68 cents a share on revenue of $3.41 billion. Western Digital also said it has named Mark Long as new chief financial officer, effective Sept. 1, to succeed Olivier Leonetti, who is leaving the company. Western Digital shares climbed 4% after hours.
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