Thursday's ETF Movers: GDX, XBI

In trading on Thursday, the Gold Miners ETF (GDX) is outperforming other ETFs, up about 0.5% on the day.  Components of that ETF showing particular strength include shares of Harmony Gold Mining (HMY), up about 3.7% and shares of IAMGOLD (IAG), up about 2.9% on the day.