Notable Call Options Activity in Alexza Pharmaceuticals

Shares of Alexza Pharmaceuticals

are higher on the session by 13.11%, currently trading at $0.939. The stock has been moving largely higher over the past three weeks and is currently trading above the 20-day moving average. Options traders are focusing on calls today. The strike seeing the heaviest volume is the June 2012 $1.00 call, which has traded 10,500 times on open interest of 13,297 contracts. Calls are outpacing puts today by 1,100 to 1. Alexza Pharmaceuticals, Inc. is a pharmaceutical company focused on the research, development, and commercialization of products for the acute treatment of central nervous system conditions.