Thanks to the return of gold sentiment, leveraged ETFs like JNUG are suddenly on investors' radar. But before taking a bite, make sure you understand what you're really buying.More From InvestorPlace Top Stock Picker Reveals His Next 1,000% Winner America's Richest ZIP Code Holds Shocking Secret #1 Under-the-Radar 5G Stock to Buy Now The 1 Stock All Retirees Must OwnRead full news