IQ MacKay Multi-Sector Income ETF (MMSB) is an actively managed exchange-traded fund that seeks high current income with a secondary objective of capital appreciation. The fund invests primarily in a diversified portfolio of fixed-income securities across multiple sectors, including high yield bonds, investment grade corporate bonds, securitized debt such as mortgage-backed and asset-backed securities, municipal bonds, and floating rate loans; it may also allocate to emerging market debt, bank loans, and preferred securities to optimize yield and manage duration risk. MMSB employs a multi-sector approach to navigate varying interest rate environments and credit cycles, targeting institutional and retail investors seeking income-oriented strategies in the fixed-income space.
Operated globally with a focus on U.S. and international debt markets, the ETF was launched in 2023 and is headquartered in New York, New York, under the management of IQ Capital LLC in partnership with MacKay Shields LLC, a subsidiary of New York Life Insurance Company. In a recent strategic development in late 2024, MMSB announced an expansion of its investment mandate to increase exposure to opportunistic credit opportunities amid shifting monetary policies, including a tactical overweight in short-duration high yield and collateralized loan obligations. This adjustment followed a seed capital raise and aims to enhance yield potential while maintaining a competitive expense ratio, positioning the fund for growth in a higher-for-longer rate environment.