- Sector
- Financial Services
- Industry
- Asset Management - Bonds
- Address
- 1900 Market Street, Suite 200 Philadelphia PA United States of America 19103
- IPO Date
- Oct 17, 2025
- Business
- abrdn Ultra Short Municipal Income Active ETF (AMUN) is an actively managed exchange-traded fund that seeks high after-tax current income consistent with capital preservation by investing primarily in investment-grade, tax-exempt municipal bonds; it maintains a portfolio duration of two years or less under normal circumstances, focusing at least 80% of its net assets plus borrowings in such securities. The ETF, traded on NASDAQ, employs a strategy combining sector allocation, fundamental credit research, and duration management to capitalize on municipal market inefficiencies while limiting taxable ordinary income distributions; key holdings include revenue bonds from entities such as King County Washington Public Hospital District, Metropolitan Transportation Authority New York, and Tennessee Energy Acquisition Corporation. Issued by abrdn Funds and co-managed by Jonathan Mondillo, Global Head of Fixed Income, and Miguel Laranjeiro, Investment Director, AMUN targets investors seeking tax-advantaged short-term fixed income with an expense ratio of 0.25% and assets under management of approximately $30 million.
Launched in October 2025 through the conversion of the abrdn Ultra Short Municipal Income Fund (originally dating to 2002-2004 share classes), AMUN represents a key expansion of abrdn Investments' active ETF suite in the U.S., alongside the simultaneous conversion of the abrdn International Small Cap Active ETF (ASCI); this milestone coincided with abrdn's U.S. ETF platform surpassing $18 billion in assets under management for the first time. Concurrently, abrdn announced the merger of its China A Share Equity Fund (GOPIX) and Focused Emerging Markets ex-China Fund (GLLSX) into the existing abrdn Emerging Markets Dividend Active ETF (AGEM), reflecting a strategic consolidation to enhance cost-efficiency and scale in active ETFs. In December 2025, abrdn further pursued U.S. expansion by agreeing to acquire management of nine closed-end funds totaling $2 billion in assets, bolstering its fixed income and broader platform capabilities.
abrdn plc, the sponsor and headquartered in Edinburgh, Scotland, operates globally with a focus on asset management across fixed income, equities, and alternatives; founded in 1825 as Aberdeen Group plc (rebranded from abrdn plc in March 2025), the firm manages over £500 billion in assets under management and administration, with significant U.S. operations through Aberdeen Investments emphasizing municipal bonds, precious metals ETFs, and active strategies. AMUN leverages abrdn's experienced U.S. Municipals Fixed Income team, backed by global credit research, serving institutional and retail investors in tax-sensitive short-term allocations primarily within U.S. markets.