MFSM vs MUB
MFS Active Intermediate Muni Bond ETF compared with iShares National Muni Bond ETF on yield, payout growth, payment schedule, cost and risk.
MFSM
MFS Active Intermediate Muni Bond ETF
TTM yield · Monthly
MUB
iShares National Muni Bond ETF
TTM yield · Monthly
Quick take
- MFSM yields more today: 3.65% vs 3.29% (forward).
- Both pay every month.
- Over the last year MFSM delivered the higher total return: +3.6% vs +2.9% (price change plus payouts).
- MUB is cheaper to own: 0.05% vs 0.34% expense ratio.
Generated from the latest data on both pages. Not a recommendation.
Side by side
| Metric | MFSM | MUB |
|---|---|---|
| Share price | $24.41 | $104.02 |
| TTM yield | 3.65% | 3.29% |
| Forward yield | 3.65% | 3.29% |
| Annual payout per share | $0.892 | $3.422 |
| Payment frequency | Monthly | Monthly |
| Next ex-date | Oct 1, 2026 (est.) | Oct 1, 2026 (est.) |
| Expense ratio | 0.34% | 0.05% |
| 1-year payout growth | — | — |
| 5-year payout CAGR | — | — |
| Consecutive years of increases | — | — |
| Payout consistency (last 12) | 94/100 | 98/100 |
| 1-year total return | +3.6% | +2.9% |
| 1-year price return | -0.1% | -0.4% |
| Size (market cap / AUM) | 103.8M | 45.4B |
| Years paying | 1.7 | 18.9 |
| Sector / category | Muni National Interm | Muni National Interm |
✓ marks the more favourable figure where one exists (higher yield, growth, streak, consistency, return and size; lower cost, payout ratio and risk).
$10,000 invested today
| MFSM | MUB | |
|---|---|---|
| Shares | 409.7 | 96.1 |
| Income per year | $365 | $329 |
| Income per month (avg) | $30 | $27 |
At forward yields, before taxes. Model MFSM · Model MUB
Next payments
| Ex-date | Pay date | Per share | Status |
|---|---|---|---|
| MFSM Oct 1, 2026 | Oct 15, 2026 | $0.0743 | Est. |
| MFSM Nov 1, 2026 | Nov 15, 2026 | $0.0743 | Est. |
| MFSM Dec 2, 2026 | Dec 16, 2026 | $0.0743 | Est. |
| MUB Oct 1, 2026 | Oct 15, 2026 | $0.2852 | Est. |
| MUB Oct 31, 2026 | Nov 14, 2026 | $0.2852 | Est. |
| MUB Nov 30, 2026 | Dec 14, 2026 | $0.2852 | Est. |
Annual payouts per share
MFSMMUB
Regular payments only; the current year is year to date. Per-share amounts are not directly comparable when share prices differ, so read this chart for growth trends.
FAQ
Which has the higher dividend yield, MFSM or MUB?
MFSM currently has the higher trailing yield: MFSM yields 3.65% and MUB yields 3.29%. Yield changes daily with price, so check the live figures above.
How often do MFSM and MUB pay?
MFSM pays every month and MUB pays every month. MFSM's next ex-date is Oct 1, 2026 and MUB's is Oct 1, 2026.
Is MFSM or MUB better for income?
It depends on what you are optimising for. MFSM and MUB differ in yield, growth, payment schedule and risk profile; the table above puts every metric side by side so you can weigh them for your own goals. This page is data, not advice.