Thursday's ETF Movers: XBI, GDXJ

In trading on Thursday, the SPDR S&P Biotech ETF (XBI) is outperforming other ETFs, up about 1.4% on the day. Components of that ETF showing particular strength include shares of Pharmacyclics (PCYC), up about 8.3% and shares of Halozyme Therapeutics (HALO), up about 6.6% on the day.