Silicon Graphics

(SGI)

, which makes workstations and supercomputers, was down 8.1% in early trading after saying it expects a first-quarter loss of 28 to 30 cents per share, including a gain of about $50 million from the sale of selected assets.

The

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First Call/Thomson Fianancial

estimate was for a loss of 14 cents. The company also announced a $50 million stock buyback plan.