Mast HedgeIndex Managed Futures Strategy ETF is an actively managed exchange-traded fund that seeks positive absolute returns with low correlation to broad equity and fixed-income markets. The fund invests primarily through futures and related instruments across global asset classes, including equity-index futures, government-bond and interest-rate futures, currency futures, commodity futures and other liquid derivatives; it employs systematic long and short positions intended to capture price trends and manage portfolio risk. The ETF is designed for investors seeking liquid, exchange-traded access to a managed-futures allocation and is offered under the Mast brand by Manteio Partners LLC. It operates as a series of Investment Managers Series Trust III, a Delaware statutory trust headquartered in Milwaukee, Wisconsin. The fund’s operations are supported by its investment adviser and service providers and it invests in U.S. and non-U.S. markets through exchange-traded derivatives. Mast HedgeIndex Managed Futures Strategy ETF trades on NYSE Arca under the ticker HXF and carries a 0.80% annual expense ratio. The fund is part of Mast’s HedgeIndex ETF platform, alongside the Mast HedgeIndex Adaptive Equities ETF, Mast HedgeIndex Corporate Arbitrage ETF and Mast HedgeIndex Strategic Commodities ETF. Recent developments include the fund’s August 2026 launch and its inclusion in Mast’s expanded lineup of hedge-fund-style alternative-strategy ETFs; the trust also filed an effective post-effective amendment with the U.S. Securities and Exchange Commission on August 18, 2026 covering HXF and the related Mast HedgeIndex funds.