Monday's ETF Movers: XBI, GDX

In trading on Monday, the SPDR S&P Biotech ETF (XBI) is outperforming other ETFs, up about 0.6% on the day. Components of that ETF showing particular strength include shares of Insys Therapeutics (INSY), up about 14.7% and shares of Mannkind (MNKD), up about 8.7% on the day.