F/m Ultrashort Tax-Free Municipal ETF
$49.74−0.10 (−0.19%)
- Expense ratio
- 0.30%
- Fund size
- $34M
- 1Y return
- —
- Yield · Last 12 months
- Data unavailable
- Holdings
- 171
- Volume · 30D
- 0M sh
- NAV per share
- $49.78
- 52W range
The ETF.net ZMUN Grade
Score 52 of 100 sits in the C band. Bands: A ≥ 70, B ≥ 55, C ≥ 40, D ≥ 25, F < 25; the scale skips E.
Cost
What you pay to own it — the expense ratio plus trading frictions, ranked within its category.FScore 19Category rankMission
How faithfully it does the job it claims — tracking its mandate or index with minimal slippage.AScore 100Category rankRisk
How violently it can move — volatility, drawdown depth, and downside capture versus its category.AScore 76Category rankTradability
How cheaply and easily you can get in and out — liquidity, spread, and premium/discount stability.DScore 33Category rankHoldings
What it actually owns — the quality, breadth, and concentration of the underlying portfolio.CScore 42Category rankDurability
Whether it will still be here — the fund’s assets, age, flows, and issuer staying power.DScore 29Category rank
Our read on ZMUN
CThe first ETF built purely on callable munis, tracking an index F/m co-developed with Bloomberg. It buys investment-grade tax-exempt bonds already callable or callable within three months, which keeps the maturity clock very short.
The fund seeks to track, before fees and expenses, the price and yield performance of the Bloomberg Municipal Bond Currently Callable Index. It uses a passive representative-sampling approach focused on U.S. tax-exempt investment-grade municipal bonds that are currently callable or callable within three months.
Why people hold it
- A corner of the muni market nobody else had packaged: F/m calls it the first ETF dedicated to callable municipal bonds, on an index built with Bloomberg.fminvest.com
- The mechanism is the point: bonds callable now or within three months act like ultrashort paper, so price moves from rate swings tend to be muted.
- Interest is exempt from federal tax and, for some holders, certain state taxes. Spread across roughly 170 investment-grade issues, with cash paid monthly.
- No style drift: it is a passive representative-sampling fund, and the portfolio it holds matches the mandate written in its prospectus.
Worth knowing
- 0.30% a year sits above the short-muni group's 0.25% median, and far above the index giants VTES (0.05%) and SUB (0.07%).
- Callability cuts both ways: issuers can redeem these bonds at their option, capping price upside and forcing reinvestment at whatever rates exist that day.fminvest.com
- A 2025 launch that is still small and thinly traded. Short track record, and limit orders are the sane way in and out.
ZMUN Holdings
- Bonds
- 171
- 19%
- South Dakota Health & Educational Facilities Authority 4% 11/01/2034
ZMUN Performance
Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.
Returns run to the Sep 22, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.
| Period | ZMUN |
|---|---|
| Year to date | +2.1% |
| 1 month | −0.2% |
| 3 months | +0.3% |
| 1 year | — |
| 3 years | — |
| 5 years | — |
| 10 years | — |
Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.
| Year | Return bar | ZMUN |
|---|---|---|
| 2026 YTD | +2.1% | |
| 2025 | +0.7% |
ZMUN in the news
ETF.net Research hasn’t filed on ZMUN yet — coverage lands here as it’s written.
ZMUN Dividends
- $0.17 per share
- Monthly
Distribution data unavailable.
Distribution history
| Ex-date | Pay date | Amount per share |
|---|---|---|
| Aug 27, 2026 | Aug 28, 2026 | $0.17 |
| Jul 28, 2026 | Jul 29, 2026 | $0.16 |
| Jun 29, 2026 | Jun 30, 2026 | $0.16 |
| May 28, 2026 | May 29, 2026 | $0.16 |
| Apr 28, 2026 | Apr 29, 2026 | $0.16 |
| Mar 30, 2026 | Mar 31, 2026 | $0.16 |
| Feb 26, 2026 | Feb 27, 2026 | $0.16 |
| Jan 29, 2026 | Jan 30, 2026 | $0.16 |
| Dec 30, 2025 | Dec 31, 2025 | $0.16 |
| Nov 26, 2025 | Nov 28, 2025 | $0.13 |
| Oct 30, 2025 | Oct 31, 2025 | $0.07 |
ZMUN Risk
- —
How it’s calculated: standard deviation
The sample standard deviation of monthly total returns, multiplied by the square root of 12.
Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.
- —
How it’s calculated: Sharpe ratio
Subtract each month’s Treasury-bill return from the fund’s monthly total return.
Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.
Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.
- —
How it’s calculated: maximum drawdown
The largest percentage decline from an earlier peak, using total returns with reinvested distributions.
Uses up to five years through the last close, with at least 12 months required.
- −0.004
How it’s calculated: beta
The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.
ZMUN Cost
- The middle half of Short-Duration Municipal Bonds funds
- Median 0.25%
21 of the 27 Short-Duration Municipal Bonds funds charge less.