Shares of Affymax (NASDAQ:

) are lower on the session by 7.49%, trading at $4.32. Overall put volume is now running at 5.37x the daily average, with 97% of all puts traded being purchases on the offer. 2,073 contracts have traded on the session so far. Affymax, Inc. is a biopharmaceutical company developing drugs to improve the treatment of serious and often life-threatening conditions.