Notable Call Options Activity on Nektar Therapeutics

Shares of Nektar Therapeutics

are higher on the session by 1.49%, trading at $5.46. 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 action is the May 2012 $6.00 call, which has traded 5,072 times on open interest of 41,446 contracts. The majority of the volume stems from a 5,000 contract block, sold for $0.50. Call volume is outpacing put volume by 5,000 to 1. Nektar Therapeutics is a clinical-stage biopharmaceutical company developing a pipeline of drug candidates that utilize its PEGylation and polymer conjugate technology platforms.