iShares MSCI Global Silver and Metals Miners ETF (SLVP) topped the list of best-performing ETFs in the past month, gaining 27.4%. Being a leveraged play, metal miners tend to experience more gains than their bullion cousins in a rising metal market (read: Gold ETFs Outperform in March).Though most of the stocks in the fund’s portfolio delivered strong returns, a few were up more than 25% in a month. These include Coeur Mining Inc. (CDE) , Endeavour Silver Corporation (EXK) , Silvercorp Metals (SVM) , Seabri ...