This is a buy. It's cheap because it's tax-loss season. Siga is supposed to start shipping product in the 1st quarter of 2013. PIP will get a big piece of the pie.Only a fool would short siga or pip. Just my opinion.
Tax Loss season is just getting ramped up, no? I could understand your argument after Jan 1. Until that time those wanting to lock in losses will continue selling and those anticipating such selling will continue shorting.