F/m Callable Tax-Free Municipal ETF (ZMUN) Performance
ZMUN total return
Distributions reinvested · as of Oct 23, 2026- YTD
- +2.7% since Dec 31, 2025
- 1 year
- +3.2% total return
- Since first price
- +3.4% since 2025
ZMUN trailing returns vs SPY, QQQ, AGG
| Period | ZMUN total return | Price only | S&P 500 (SPY) | Nasdaq-100 (QQQ) | U.S. bonds (AGG) |
|---|---|---|---|---|---|
| 1 month | +0.7% | +0.4% | −1.0% | −5.0% | +0.9% |
| 3 months | +0.6% | −0.4% | +3.2% | +1.9% | −0.4% |
| 6 months | +1.4% | −0.5% | +7.8% | +8.4% | −1.5% |
| YTD | +2.7% | −0.3% | +12.3% | +15.1% | −1.0% |
| 1 year | +3.2% | −0.4% | +14.4% | +15.9% | −1.1% |
| Since inceptionSep 30, 2025 | +3.4% | −0.2% | — | — | — |
Total return from adjusted closes (distributions reinvested, before tax). Periods of 3 years or more are also shown annualized. Price only excludes distributions.
Growth of $10,000: ZMUN vs SPY
From Sep 30, 2025: ZMUN grew to $10,340, SPY to $11,531.
Year-end values with distributions reinvested, no taxes or trading costs. Start: first common trading day of both funds.
ZMUN returns by calendar year
2026 is year to date.
ZMUN annual returns table
| Year | ZMUN | Largest drop | SPY | QQQ | AGG |
|---|---|---|---|---|---|
| 2026YTD | +2.7% | −1.0% | +12.3% | +15.1% | −1.0% |
Largest drop = deepest fall from a high within that calendar year.
Calendar-year return vs largest drop within the year
Most years include a sizable fall at some point even when the year ends higher.
ZMUN risk statistics
| Statistic | Since 2025 |
|---|---|
| Annualized return | +2.2% |
| Volatility (annualized) | 1.1% |
| Sharpe ratio | -1.30 |
| Sortino ratio | -1.28 |
| Best month | +0.4% |
| Worst month | −0.8% |
| Best 12 months | +2.2% |
| Worst 12 months | +2.2% |
| Positive months | 92% |
| Beta vs S&P 500 | — |
| Correlation with S&P 500 | — |
From monthly total returns. Sharpe and Sortino use 1–3 month T-bills (BIL) as the risk-free rate, so they need history from 2007 on.
ZMUN rolling returns
| Holding period | Periods | Worst | Median | Best | Positive |
|---|---|---|---|---|---|
| 1-year | 2 | +2.2% | +2.7% | +3.2% | 100% |
Every holding period starting at a month-end since 2025. Returns for 3 years and longer are annualized.
ZMUN performance overview
F/m Callable Tax-Free Municipal ETF (ZMUN) returned +3.2% over the past year, with distributions reinvested. Since its first recorded price on Sep 30, 2025 it has returned +3.4%. Over the same year S&P 500 (SPY) returned +14.4%.
Related: ZMUN chart, ZMUN dividends. See the ZMUN overview for the latest quote and fund facts.
ZMUN performance FAQ
What is the ZMUN return over the past year?
ZMUN returned +3.2% over the 12 months to October 23, 2026, including reinvested distributions. On price alone it fell 0.4%.
How much would $10,000 invested in ZMUN be worth?
$10,000 invested in ZMUN at its first recorded close on September 30, 2025 would be worth about $10,340 on October 23, 2026 with distributions reinvested.
How volatile is ZMUN?
Over the past history ZMUN had an annualized volatility of 1.1% and a Sharpe ratio of -1.30 (excess return over 1–3 month T-bills per unit of risk).