Exchange traded funds that invest in miner shares were down along with U.S. stock indexes Monday, lagging ETFs that hold gold and silver bullion.

Global X Silver Miners (NYSEArca: SIL) slipped more than 4% in morning trades while Market Vectors Gold Miners ETF (NYSEArca: GDX) dropped roughly 2%.

Miner stocks can see more volatility than ETFs that invest in physical metals and futures. Miner shares also introduce stock-market risks.

Global X Silver Miners

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