The ProShares Ultra Gold ETF ( UGL ) is a leveraged ETF based on the Bloomberg Gold Subindex with a factor of 2x, and it was launched on December 1, 2008. UGL has an expense ratioFred Piard, PhD. is a quantitative analyst and IT professional with over 30 years of experience working in technology. He is the author of three books and has been investing in data-driven systematic strategies since 2010. Fred runs the investing group Quantitative Risk & Value where he shares a portfolio invested in quality divide ...