You have it confused with another OXBT or OXGN or one of the other scams. I agree there is some point in shorting every biotech that goes up big. I would tread lightly with ARNA if I were you, because it is a multi billion dollar opportunit, cash rich and with good partnership.
Hey, I at least give you credit for not hiding under a rock in the face of adversity like Telecaster. So, you've been posting since the 7th... and nobody even heard of you until maybe Friday... So at best you opened your short on Friday's pop. 15% in a day is some adversity. Talk about bad timing.