The VelocityShares 3x Long Gold ETN (UGLDF) is a mutual fund that seeks to provide investors with three times the daily performance of gold prices. This fund is designed for investors who are bullish on the price of gold and want to amplify their potential returns. It is an exchange-traded note (ETN), which means it is a debt instrument issued by a financial institution and is backed by the credit of the issuer. UGLDF is a high-risk, high-reward investment option that is best suited for experienced and aggressive investors.