The fund aims to provide broad exposure to a portfolio of long-term US Treasury bonds. It exclusively holds investment-grade securities that have more than 20 years until maturity, and are denominated in US dollars. The index is market value-weighted and is usually rebalanced monthly. The Manager may opt to use a replicating strategy, a sampling strategy, or hold derivatives to maximize returns. XTLT is a great choice for investors who want long-term Treasury exposure.