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TheStreet Open House

Fortinet Puts Ring Up Quick Winners

By David Russell, reporter at OptionMonster

NEW YORK -- Fortinet (FTNT) fell hard last quarter, and the bears came back Thursday.

OptionMonster's tracking systems detected unusual activity in the January 20 puts shortly after the open, with buyers paying 25 cents to 30 cents. More than 3,600 contracts traded by the end of the session, far above the strike's previous open interest of just 244 and therefore new positions.

Puts lock in the price where investors have the right to sell stock, so the options can generate some nice leverage in the event of a decline. That happened nicely Thursday because those puts more than tripled in value to $1.20 as the network-security stock pushed lower.

Fortinet's shares fell 8.78% Thursday to close at $19.33. They gapped lower on Oct. 16 after the company lowered guidance, then rolled over after attempting to rebound in November and December.

Total option volume was 32 times greater than average in the name. There was also heavy call volume, but most of those calls were sold, which reflects a belief that upside will be limited.

Russell has no positions in FTNT.

This commentary comes from an independent investor or market observer as part of TheStreet guest contributor program. The views expressed are those of the author and do not necessarily represent the views of TheStreet or its management.

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