Pursuits

Sony Drops Most in 7 Months After Announcing TV Business Revamp

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Sony Corp., reeling from seven consecutive annual losses in television manufacturing, plunged the most in more than seven months in Tokyo after announcing a reorganization of the business into three groups.

One group will oversee the liquid-crystal-display operations, another will coordinate contract manufacturing and a third will oversee the development of next-generation sets, Ayano Iguchi, a spokeswoman, said by telephone. The changes take effect today, a day before the company announces earnings.