The fund is passively managed to provide exposure to the high yield segment of the corporate bond market. The index only includes USD-denominated corporate debt that have composite ratings between BB+ and C based on credit scores given by S&P, Moody, and Fitch. Eligible bonds should have a minimum amount outstanding of $400 million and at least 20 months remaining to maturity at the time of inclusion. The resulting portfolio is weighted by market value, with single issuer weights capped at 3%.