This is an article from February tells me everything I need to know about what happened on the day of results and in general in the biotech sector over the last year.... "When it comes to short percent of float, however, the XBI Biotech ETF has the highest of the six ETFs mentioned above at 94%." @TCellTim posted a picture of the XBI short interest today and it's sitting at 96.99%. XBI RSI is getting to oversold levels, looking through past times it has gone to over sold territory there is almost always a strong bounce back. We're swimming against the tide right now, wait until the tide changes directions and bio - especially good companies - should do very well. They are not going to short the entire bio tech sector until there are 5 companies left, just the market cycle coming into play. benzinga.com/analyst-rating...
Short Sellers Still Targeting Retail, Biotech ETFsvia: Benzinga