Both funds focus on basic materials, but they have plenty of differences that set them apart from each other.The Global X Silver Miners ETF (SIL 1.42%) and the VanEck Gold Miners ETF (GDX 1.16%) both target mining equities. GDX stands out for its recent outperformance, lower costs, and larger assets under management (AUM), while SIL leans toward silver miners and offers a slightly higher yield. Both funds provide concentrated exposure but differ in cost, risk, and recent returns.Snapshot (cost & size)Metric ...