Wednesday's ETF Movers: XBI, GXC

In trading on Wednesday, the SPDR S&P Biotech ETF (XBI) is outperforming other ETFs, up about 1.7% on the day. Components of that ETF showing particular strength include shares of Vanda Pharmaceuticals (VNDA), up about 24.4% and shares of Mannkind (MNKD), up about 10% on the day.