New York Life Investments Active ETF Trust (the Trust) serves as a registered investment company that issues shares of multiple actively managed exchange-traded funds (ETFs), including the NYLI MacKay Muni Allocation ETF (NYSE Arca: MMMA), which seeks current income exempt from federal income tax by investing primarily in long-duration investment-grade municipal securities supplemented by a strategic allocation to high-yield municipals; other funds in the Trust include the NYLI MacKay Muni Short ETF (MSMU), NYLI MacKay Muni Intermediate ETF (MMIT), and NYLI MacKay Muni High Income ETF (MMIT), focusing on various durations and credit qualities within the municipal bond market. The Trust operates through a multi-boutique platform leveraging specialized subadvisers such as MacKay Municipal Managers, a team with extensive experience in municipal securities including investment-grade, high-yield, and taxable municipals, managing over $76 billion in assets as of early 2024. Products emphasize tax-efficient income generation, liquidity, and transparency via ETF structures, targeting individual and institutional investors seeking active strategies in the U.S. municipal bond segment.
In a major recent development, New York Life Investments launched the NYLI MacKay Muni Allocation ETF (MMMA) on December 16, 2025, expanding its active municipal ETF lineup to capitalize on attractive tax-exempt yields amid favorable long-duration market conditions. This launch builds on prior expansions, including related MacKay-subadvised municipal ETFs, and reflects the firm's strategy to offer differentiated active management in a low-cost ETF format amid shifting interest rate environments. No significant acquisitions, funding rounds, or reorganizations have been reported for the Trust in the past 1-2 years beyond this product addition.
The Trust, part of New York Life Investments—a global asset management arm of New York Life Insurance Company, founded in 1845 and headquartered at 51 Madison Avenue in New York City—focuses on U.S. fixed income strategies, particularly municipals, with geographic operations centered in the United States. MacKay Municipal Managers serves as subadviser for MMMA and related funds, employing fundamental credit research and relative-value approaches. The platform provides access to boutique expertise across equity and fixed income, though MMMA targets tax-sensitive investors in national muni markets.