Thursday's ETF Movers: XBI, XME

In trading on Thursday, the SPDR S&P Biotech ETF (XBI) is outperforming other ETFs, up about 1.2% on the day. Components of that ETF showing particular strength include shares of Ultragenyx Pharmaceutical (RARE), up about 5.5% and shares of Alder Biopharmaceuticals (ALDR), up about 4.4% on the day.