DUSA s active management takes a bottom-up approach to the US large-cap equity market, emphasizing individual security selection and focusing particularly on the quality of a companys management, business model and competitive advantages. The fund manager aims to purchase securities at a discount to intrinsic value, ideally holding these positions for at least five years. While DUSA is primarily focused on US large-caps, the fund may access the entire market-cap spectrum at the managers discretion. Up to 20% of assets may be invested in non-US companies. DUSA launched in January 2017 from issuer Davis, an established asset manager that is new to ETFs.