The investment seeks income. Under normal market conditions, the fund invests at least 80% of its net assets in direct obligations of the U.S. Treasury, including Treasury bonds, bills and notes, and investments that provide exposure to direct obligations of the U.S. Treasury. It may invest in U.S. Treasury securities of any maturity and intends to primarily focus on U.S. Treasury securities with a remaining maturity of between 1-30 years.