AGZD launched as one of the two zero-duration products by WisdomTree to address concerns over rising rates, and targets the broad US investment-grade space with an interest-rate-hedged overlay. It shares the same parent long index as many existing US Agg ETFs. By shorting a variety of Treasury futures, the fund aims to achieve a net-zero portfolio duration, hence eliminatingor at least greatly minimizinginterest-rate risk. AGZD might be appealing to investors who want to capture the credit spread but are uncertain about the interest-rate paths.