Sun Microsystems (SUNW) - Get Sunworks, Inc. Report was up 4.9% in preopen Island trading after the company posted pro forma earnings of 4 cents a share, beating analysts' reduced estimates by 1 cent and down from 21 cents a share in the year-earlier period. Revenue was $4 billion.

The network computer maker reported a net loss of 3 cents a share.

Sun

didn't offer detailed guidance for the first quarter, but said it expected to generate more than $3.7 billion in revenue, that is, more than break-even on an operating basis.

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