UST is a leveraged play on the intermediate portion of the US Treasury yield curve, providing (2x) exposure to the daily returns of an index of US Treasury securities with 7 to 10 year years remaining in maturity. Targeting this pocket gives UST significant interest rate sensitivity, and sets it apart from the many funds that target 1 to 10 year Treasury securities. As a geared product with daily reset, UST is not a buy-and-hold investment, and should not be expected to provide index leverage return greater than one day period. That also means that trading costs matter much more here than fees, and on this front UST could have some vulnerabilities. Investors should pay close attention to its daily trading characteristics to determine if it has enough liquidity to support same-day entry and exit. Prior to October 14, 2016, UST tracked Bloomberg Barclays U.S. 7-10 Year Treasury Bond Index. The change has minimal impact on investors' exposure.