6. Direxion Daily Gold Miners Bull 2X ( NUGT) began trading on Dec. 8, 2010. The Bull Fund seeks daily investment results, before fees and expenses, of 200 percent of the price performance of the NYSE Arca Gold Miners Index. The fund, under normal circumstances, creates long positions by investing at least 80 percent of its net assets in the equity securities that comprise the Index. This ETF can add a 'NUGT', or nugget, to your portfolio with double leveraged exposure to Barrick Gold ( ABX), Goldcorp ( GG), and Newmont Mining ( NEM).