HYDW provides exposure to a portion of the USD high-yield bond space that exhibits lower volatility. The index calculates the median yield to worst for each sector in the USD high-yield space, and then selects all eligible securities yielding less than their sectors median yield. The idea is that lower yielding bonds tend to exhibit lower volatility. As a side effect, HYDW holds bonds with higher average credit quality and longer duration than the broader high-yield market. Issues must have less than 15 years remaining to maturity. The underlying index is market-value weighted, with monthly rebalancing and reconstitution.