Gold Miners ETF Inches Toward a Breakout

The Market Vectors Gold Miners ETF (NYSEArca: GDX), the largest gold miners ETF, has surged 12.3% over the past 90 days, a gain that is roughly 10 times better than that of the SPDR Gold Shares (NYSEArca: GLD) and other ETF backed by physical holdings of gold. Year-to-date, GDX has climbed 21.4%,...