The municipal, national, long bond ETFs that took in the most
MUB took in the most over twelve months to May 2026: $5.0bn.
Coverage
Twelve-month list: 31 funds with SEC filings for every month to May 2026, 62.2% of the group’s net assets. 1 funds’ filings report flows for the whole fund, all share classes, so they are not ranked here: VTEB
Rank change
Against the last edition of this list: the previous trading day for 1W and 1M, the previous month for 12M. "new" means not in the top 25 last time
How these lists are built
Measure
Net flow: money in less money out, in dollars, over the window, leaving any round trip aside
12 months · Jun 2025 to May 2026
From SEC filings · 27 funds · the last month every filer has reportedFilings run about 60 days behind, so this list ends at the latest month every fund in the group has filed, printed in the heading and the title. Rank change is against last month’s edition.
| # | Fund | Name | Net flow | Share of assets | Rank change |
|---|---|---|---|---|---|
| 1 | MUB | iShares National Muni Bond ETF | +$5.0bn | · | ▲ 1 |
| 2 | JMUB | JPMorgan Municipal ETF | +$4.8bn | · | ▼ 1 |
| 3 | SCMB | Schwab Municipal Bond ETF | +$1.8bn | · | same |
| 4 | LMUB | iShares Long-Term National Muni Bond ETF | +$1.6bn | · | same |
| 5 | FLMI | Franklin Dynamic Municipal Bond ETF | +$1.4bn | · | same |
| 6 | VCRM | Vanguard Core Tax-Exempt Bond ETF | +$1.3bn | · | ▲ 1 |
| 7 | PZA | Invesco National AMT-Free Municipal Bond ETF | +$1.2bn | · | ▼ 1 |
| 8 | MINO | PIMCO Municipal Income Opportunities Active Exchange-Trade | +$335m | · | same |
| 9 | TAFM | AB Tax-Aware Intermediate Municipal ETF | +$315m | · | ▲ 1 |
| 10 | VTEL | Vanguard Long-Term Tax-Exempt Bond ETF | +$254m | · | ▼ 1 |
| 11 | MUST | Columbia Multi-Sector Municipal Income ETF | +$161m | · | same |
| 12 | MLN | VanEck Long Muni ETF | +$157m | · | same |
| 13 | FMUB | Fidelity Municipal Bond Opportunities ETF | +$152m | · | same |
| 14 | TAXF | American Century Diversified Municipal Bond ETF | +$148m | · | same |
| 15 | BAB | Invesco Taxable Municipal Bond ETF | +$127m | · | ▲ 2 |
| 16 | BSMY | Invesco BulletShares 2034 Municipal Bond ETF | +$104m | · | ▼ 1 |
| 17 | BSMW | Invesco BulletShares 2032 Municipal Bond ETF | +$97.6m | · | ▼ 1 |
| 18 | FMB | First Trust Managed Municipal ETF | +$82.8m | · | ▲ 1 |
| 19 | BSSX | Invesco BulletShares 2033 Municipal Bond ETF | +$51.0m | · | ▼ 1 |
| 20 | TAFL | AB Tax-Aware Long Municipal ETF | +$26.2m | · | ▲ 2 |
| 21 | TXXI | BondBloxx IR+M Tax-Aware Intermediate Duration ETF | +$20.7m | · | same |
| 22 | NUMI | Nuveen Municipal Income ETF | +$18.7m | · | ▼ 2 |
| 23 | JHMU | John Hancock Dynamic Municipal Bond ETF | +$16.3m | · | same |
| 24 | FMUN | Fidelity Systematic Municipal Bond Index ETF | +$11.6m | · | same |
| 25 | MFLX | First Trust Flexible Municipal High Income ETF | +$4.1m | · | same |
SEC Form N-PORT, item B.6, monthly, every fund with a filing for every month of the window.CSV
Other flow rankings
ETFIQ, The municipal, national, long bond ETFs that took in the most, data as of Oct 8, 2026. https://etfiq.com/flows/rankings/segment/muni-national-long/inflows/
ETFIQ is an independent publisher and makes no recommendations; a rank is a sort of one published figure, not an opinion.