Since the biotechs peaked on Feb.25, GILD is down about 6%. The IBB is down closer to 18%, as are stocks like REGN. Many are down more than 30%. This stock is outperforming the category. The overhang of the 80 calls will tend to hold this here until next week. You should also understand that about 80% of the trading in this market is wheelspinning and that real volume is low.
I was reading a report that I got from an online broker doing some research on GILD and it was stated that according to their calculations (research firm not broker) GILD should be or could be worth 178.00 a share ... This came from Scottrade web site.