The Fund is an exchange-traded fund that pursues its investment objective by investing in debt securities issued by the U.S. Treasury (which we refer to as U.S. Government Bonds) as well as money market funds that invest exclusively in U.S. Government Bonds or repurchase agreements collateralized by such securities. Securities issued by the U.S. Treasury historically have not had credit-related defaults (i.e., failures to fulfill payment-related obligations such as interest or principal payments) and therefore such securities are generally considered to be credit risk-free (i.e., free of the risk of non‑payment of either interest or principal).