) are lower on the session by 3.43%, currently trading at $3.66. The stock has been moving largely lower over the past three months and is currently trading below the 50-day moving average. Options traders are focusing on calls today. The strike seeing the heaviest volume is the June 2012 $5.00 call, which has traded 780 times on open interest of 1,266 contracts. Calls are outpacing puts today by 12 to 1. Vical Incorporated researches and develops biopharmaceutical products based on its deoxyribonucleic acid delivery technologies for the prevention and treatment of serious or life-threatening diseases.