Biotech stocks are on fire as Obamacare repeal vote looms By: CNBC.com News June 21, 2017 at 11:53 AM EDT The SPDR S&P Biotech ETF (XBI) climbed more than 3 percent on Wednesday, putting it on track to post its best weekly performance since March 13. Read More >> Related Stocks: S&P Biotech SPDR