The DUSB ETF endeavors to maximize returns by allocating capital to ultra-short duration U.S. investment-grade fixed income securities. While primarily focusing on instruments that mature in under a year, the fund retains the flexibility to strategically invest in longer-dated securities when opportunities for greater yields arise. Its portfolio is well-diversified across various types of fixed income, including U.S. government and agency debt, international bonds, and corporate obligations. Key holdings typically encompass high-quality certificates of deposit, commercial paper, bankers acceptances, notes, and bonds. DUSB aims to keep its overall portfolio maturity at one year or less, with investment adjustments made dynamically based on anticipated term premiums. Additionally, the fund may leverage tools such as futures contracts, options, and securities lending to mitigate interest rate risk and supplement income. Being actively managed, investment choices are made at the discretion of the Adviser, which may result in a more frequent trading of portfolio holdings.