
First Trust Flexible Municipal High Income ETF
$16.55−0.11 (−0.66%)
- 0.49%
- $20M
- +1.8%
- 4.35%
- 6.12K sh
- low $15.57high $17.95
The ETF.net MFLX Grade
Score 42 out of 100
- 17 of 19
Score 42 of 100 falls in the C band. A is 70 or higher, B 55 to under 70, C 40 to under 55, D 25 to under 40, F under 25.
Cost
The fund’s net expense ratio, ranked against its category.D31 out of 100Rank 13 of 19Mission
Whether the fund did what it promised, tested against its stated mandate.A78 out of 100Rank 16 of 18Risk
How the fund held up when markets fell: downside volatility, drawdowns and tail loss.C45 out of 100Rank 9 of 19Tradability
How easy the fund is to trade: daily volume, and how far its price strays from net asset value.F8 out of 100Rank 18 of 19Holdings
How concentrated the fund is, and how complete and current its disclosed holdings are.D34 out of 100Rank 16 of 19Durability
Whether the fund is likely to stay open, judged by its age, its assets and its issuer’s assets.C52 out of 100Rank 10 of 19
Our read on MFLX
In short
CLaunched in 2016 as a basket of closed-end muni funds, MFLX was rebuilt in 2022 into a hands-on portfolio of roughly 80 high-yield munis, with closed-end-style leverage available through tender option bond trusts.
Stated mandate
The Fund seeks current income by investing at least 80% of its net assets in municipal debt securities whose interest is exempt from regular federal income taxes.
Why people hold it
Worth knowing
MFLX 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 Nov 9, 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 | MFLX |
|---|---|
| Year to date | +1.6% |
| 1 month | +5.3% |
| 3 months | −0.8% |
| 1 year | +1.8% |
| 3 years | +6.2% |
| 5 years | −0.6% |
| 10 years | +2.4% |
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 | MFLX |
|---|---|---|
| 2026 YTD | +1.6% | |
| 2025 | +4.0% | |
| 2024 | +3.7% | |
| 2023 | +9.0% | |
| 2022 | −19.9% | |
| 2021 | +8.4% | |
| 2020 | +7.1% |
MFLX in the news
MFLX Dividends
- 4.35%
- $0.72
- $0.06 per share
- Monthly
Distribution history
MFLX Risk
- 7.2%
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.
- 0.21
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.
- −25.1%
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.
- 1.14
How it’s calculated: beta
The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.
FMP measures it over up to five years of monthly returns.
MFLX Cost
Overpaying vs FMUB, cheapest in High-Yield Municipal Bonds
$3,643
On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.
MFLX 0.49%
$9,792
FMUB 0.30% Cheapest
$6,149
Cost over time
Year by year
| Year | MFLX | FMUB | Overpaying |
|---|---|---|---|
| 10 | $883 | $545 | $338 |
| 20 | $3,394 | $2,113 | $1,281 |
| 30 | $9,792 | $6,149 | $3,643 |
Other funds in High-Yield Municipal Bonds
- BFMHIFirst Trust Municipal High Income ETFExpense ratio 0.70%1 year return +1.8%
- BJMHIJPMorgan High Yield Municipal ETFExpense ratio 0.52%1 year return +1.0%
- CHTAXNomura National High-Yield Municipal Bond ETFExpense ratio 0.49%1 year return +1.7%
- CFCALFirst Trust California Municipal High Income ETFExpense ratio 0.65%1 year return +1.3%
- DFMNYFirst Trust New York Municipal High Income ETFExpense ratio 0.65%1 year return +0.9%



