Group 1 - The WisdomTree U.S. High Yield Corporate Bond, Zero Duration Index provides exposure to U.S. high-yield corporate bonds while targeting zero interest-rate duration through a systematic short overlay in U.S. Treasuries and/or Treasury futures adjusted monthly [1] - The bond universe includes USD-denominated issues from publicly listed, U.S.-domiciled issuers rated below BBB–/Baa3, with a minimum maturity of 1 year and a minimum par outstanding of 500 million USD; distressed names rated C or below are excluded [1] - The selection process emphasizes fundamental screens focusing on positive free cash flow and removes the sector-relative bottom 5% by liquidity [1] Group 2 - The weighting of the bond basket tilts towards higher income using recovery-adjusted OAS scaled by estimated probability of default, with an issuer cap of 2% to limit concentration [1] - The bond basket is reconstituted and rebalanced semi-annually in May and November, while the hedge is refreshed on a monthly basis [1]