MUNX — AMG GW&K Muni Income ETF
Data updated: 2026-06-01
MUNX — AMG GW&K Muni Income ETF data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $16.84M AUM · 0.29% expense ratio. From SEC regulatory filings.
MUNX Fund Overview
MUNX — AMG GW&K Muni Income ETF is a US ETF managed by AMG ETF Trust, categorised as Long Municipal - National Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US ETF
- Manager: AMG ETF Trust
- Category: Long Municipal - National Bond
- Assets under management: $16.84M
- Ticker: MUNX
- SEC CIK: 0000879947
- SEC series ID: S000095116
- Share class ID: C000263709
MUNX Holdings
Top 10 holdings of AMG GW&K Muni Income ETF by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Fixed Income Clearing Corporation | 2.70% |
| Houston Tex | 2.62% |
| Philadelphia (pa), City Of | 2.55% |
| North Dakota St Hsg Fin Agy | 2.52% |
| New York Transportation Development Corp. (ny) | 2.50% |
| Jea Fla | 2.47% |
| Massachusetts St Dev Fin Agy | 2.37% |
| Texas Private Activity Bd Surface Transportation Corp. | 2.30% |
| A.b. Won Pat International Airport Authority | 2.24% |
| Public Fin Auth Wis | 2.23% |
MUNX Portfolio Allocation
Asset-class allocation of AMG GW&K Muni Income ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 98.5% |
| Cash & Equivalents | 2.7% |
MUNX Performance
Total returns for MUNX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.2% |
MUNX Costs and Fees
MUNX costs about $29 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.29%
- Gross expense ratio: 0.29%
- Portfolio turnover: 23%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
MUNX Cashflows
Over the 12 months to 2026-03, AMG GW&K Muni Income ETF had net inflows of $7.54M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | $0 |
| 2026-02 | $2.53M |
| 2026-01 | $4.81K |
| 2025-12 | $2.39K |
| 2025-11 | $4.20K |
| 2025-10 | $5.00M |
MUNX Debt Constituents
Largest debt holdings of AMG GW&K Muni Income ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Houston Tex | 2.62% |
| Philadelphia (pa), City Of | 2.55% |
| North Dakota St Hsg Fin Agy | 2.52% |
| New York Transportation Development Corp. (ny) | 2.50% |
| Jea Fla | 2.47% |
| Massachusetts St Dev Fin Agy | 2.37% |
| Texas Private Activity Bd Surface Transportation Corp. | 2.30% |
| A.b. Won Pat International Airport Authority | 2.24% |
| Public Fin Auth Wis | 2.23% |
| Commonwealth Financing Authority (pa) | 2.14% |
MUNX Prospectus and SEC Filings
Official AMG GW&K Muni Income ETF filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Municipal - National Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.