GWMZX — AMG GW&K Municipal Enhanced Yield Fund
Data updated: 2026-06-01
GWMZX — AMG GW&K Municipal Enhanced Yield Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Municipal - National Bond · $156.57M AUM · 0.59% expense ratio · 3.0% 1-yr return. From SEC regulatory filings.
GWMZX Fund Overview
GWMZX — AMG GW&K Municipal Enhanced Yield Fund is a US mutual fund managed by Amg Funds, 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 mutual fund
- Manager: Amg Funds
- Category: Long Municipal - National Bond
- Assets under management: $156.57M
- 1-year return: 3.0%
- Ticker: GWMZX
- SEC CIK: 0001089951
- SEC series ID: S000023781
- Share class ID: C000180069
GWMZX Holdings
Top 10 holdings of AMG GW&K Municipal Enhanced Yield Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Texas Private Activity Bd Surface Transportation Corp. | 4.27% |
| Public Auth For Colo Energy Nat Gas Pur | 4.08% |
| Pennsylvania Economic Development Financing Authority (pa) | 3.30% |
| A.b. Won Pat International Airport Authority | 3.14% |
| Richland (sc), County Of | 2.79% |
| Central Plains Energy Proj Neb | 2.71% |
| Escambia County Health Facilities Authority (fl) | 2.69% |
| New York Transportation Development Corp. (ny) | 2.68% |
| Rhode Island Health And Educational Building Corp. (ri) | 2.66% |
| Public Fin Auth Wis | 2.61% |
GWMZX Portfolio Allocation
Asset-class allocation of AMG GW&K Municipal Enhanced Yield Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 99.0% |
| Cash & Equivalents | 1.8% |
GWMZX Performance
Total returns for GWMZX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.7% |
| 1 year | 3.0% |
| 3 years (annualised) | 3.4% |
| 5 years (annualised) | -0.1% |
GWMZX Risk Information
Risk metrics for GWMZX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 6.4%
GWMZX Costs and Fees
GWMZX costs about $59 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.59%
- Gross expense ratio: 0.70%
- Portfolio turnover: 36%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
GWMZX Cashflows
Over the 12 months to 2026-03, AMG GW&K Municipal Enhanced Yield Fund had net outflows of $23.27M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$3.48M |
| 2026-02 | $932.83K |
| 2026-01 | $2.09M |
| 2025-12 | −$3.57M |
| 2025-11 | −$2.09M |
| 2025-10 | −$987.99K |
GWMZX Debt Constituents
Largest debt holdings of AMG GW&K Municipal Enhanced Yield Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Texas Private Activity Bd Surface Transportation Corp. | 4.27% |
| Public Auth For Colo Energy Nat Gas Pur | 4.08% |
| Pennsylvania Economic Development Financing Authority (pa) | 3.30% |
| A.b. Won Pat International Airport Authority | 3.14% |
| Richland (sc), County Of | 2.79% |
| Central Plains Energy Proj Neb | 2.71% |
| Escambia County Health Facilities Authority (fl) | 2.69% |
| New York Transportation Development Corp. (ny) | 2.68% |
| Rhode Island Health And Educational Building Corp. (ri) | 2.66% |
| Public Fin Auth Wis | 2.61% |
GWMZX Prospectus and SEC Filings
Official AMG GW&K Municipal Enhanced Yield Fund 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.