MUNX Performance — AMG GW&K Muni Income ETF
Data updated: 2026-08-28
In the 12 months to Jun 2026 the fund took in a net $10.5M, and assets reached $20.14M.
MUNX Growth of $100
What $100 invested in AMG GW&K Muni Income ETF grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Municipal Bond category average over the same months.
| Period | MUNX | Category average |
|---|---|---|
| Since data start (Oct 2025 – Jun 2026) | $103 | $103 |
MUNX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +2.38% |
MUNX Annual Returns
Calendar-year total returns of AMG GW&K Muni Income ETF, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +2.38% |
| 2025 (Oct–Dec) | +0.28% |
MUNX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +0.9% | +1.2% | −2.3% | +1.3% | +0.5% | +0.8% | — | — | — | — | — | — |
| 2025 | — | — | — | — | — | — | — | — | — | −0.2% | +0.4% | +0.1% |
MUNX Risk
Risk measures from monthly returns over Oct 2025 – Jun 2026.
- Best month: +1.27% (Apr 2026)
- Worst month: −2.28% (Mar 2026)
MUNX Fund Flows
Monthly money in and out of AMG GW&K Muni Income ETF, from SEC Form N-PORT.
- 12-month net flow: $10.5M
- 12-month gross sales (incl. reinvestments): $10.5M
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $2.0M | $0 | $2.0M |
| May 2026 | $0 | $0 | $0 |
| Apr 2026 | $992K | $0 | $992K |
| Mar 2026 | $0 | $0 | $0 |
| Feb 2026 | $2.5M | $0 | $2.5M |
| Jan 2026 | $5K | $0 | $5K |
| Dec 2025 | $2K | $0 | $2K |
| Nov 2025 | $4K | $0 | $4K |
| Oct 2025 | $5.0M | $0 | $5.0M |
MUNX Assets Under Management
Net assets of AMG GW&K Muni Income ETF by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $20.14M |
| 2026-03-31 | $16.84M |
| 2025-12-31 | $10.47M |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.