Notable Call Options Activity in Westport Innovations

Shares of Westport Innovations

are lower on the session by 1.54%, currently trading at $38.31. The stock has been moving largely higher over the past two months and is currently trading above the 50-day moving average. Options traders are focusing on calls today. The strike seeing the heaviest volume is the February 2012 $35.00 call, which has traded 1,580 times on open interest of 2,808 contracts. The Feb2012 $40.00 call also traded 1,170 times on 1,698 contracts. Calls are outpacing puts today by 5 to 1. Westport Innovations Inc. is a provider of engine and fuel system technologies utilizing gaseous fuels. The company's technology and products enable light-, medium-, heavy-duty and high-horsepower petroleum-based fuel engines to use primarily natural gas.