Thursday's ETF Movers: XBI, ITB

In trading on Thursday, the SPDR S&P Biotech ETF (XBI) is outperforming other ETFs, up about 2.1% on the day. Components of that ETF showing particular strength include shares of Keryx Biopharmaceuticals (KERX), up about 15.2% and shares of Ophthotech (OPHT), up about 9.3% on the day.