) are lower on the session by 4.24%, currently trading at $63.25. The stock has been moving largely higher over the past three months and is currently trading above the 50-day moving average. Options traders are focusing on puts today. The strike seeing the heaviest action is the March 2012 $55.00 put, which has traded 3,000 times on open interest of 3,221 contracts. Put volume is outpacing call volume by 11 to 1. Medivation, Inc. is a biopharmaceutical company focused on the rapid development of small molecule drugs to treat serious diseases, for which there are limited treatment options.