CNBC Stock Blog

SGI Gets Bullish Activity Ahead of Earnings

Silicon Graphics has struggled this quarter, but option activity was bullish yesterday ahead of its earnings report later this week.

The activity started shortly after the market opened yesterday, with buying in the August 13 calls. More than 2,000 of those contracts traded against very small open interest, and a few triple-digit blocks fetched $0.60 and $0.70. Traders also bought more than 1,700 September 13 calls for $1.25 to $1.35, according to OptionMonster's real-time tracking systems.

SGI rose 7.16 percent to $13.17 yesterday. It's been falling after huge rally in the late winter and spring but is still positive for the year. The company, which delivers clustered computing and storage systems, will issue fiscal fourth-quarter results after the bell on Thursday.

More than 4,100 contracts traded yesterday versus the name's daily average of 600. Of those, just 80 were puts, so the positioning was definitely looking for upside.

—Najarian owns SGI calls.

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Pete Najarian is a professional investor, CNBC contributor, regular co-host of CNBC's "Fast Money" and co-founder of .