1. New York Life launched NYLI MacKay Muni Allocation ETF (MMMA) for tax-exempt income. 2. MMMA targets long-duration investment-grade bonds with a high-yield tactical sleeve. 3. Current market offers compelling entry points for long-duration municipal strategies. 4. Tax-exempt yields are high, seen as attractive levels in over 10 years. 5. MMMA expands New York Life's product offerings in active municipal bond ETFs.