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ETF · holdings as filed 2026-07-31

What's inside FMUB?

Fidelity Municipal Bond Opportunities ETF
Holdings
596
positions in the fund
Top 10
14%
of fund assets
Expense ratio
0.30%
net, per year
Fund size
$243M
total net assets

Top 20 holdings

RankLogoTicker / NameWeight
1
?
—Fidelity Revere Street Trust
6.24%
2
BOND
Louisville Co Metro-A
1.72%
3
BOND
Black Belt Energy-G
0.95%
4
BOND
Main Street Natural-E
0.83%
5
BOND
Dallas Fort Worth-A-1
0.79%
6
BOND
Ny St Hsg Fin Agy-D-2
0.79%
7
BOND
San Antonio-A
0.77%
8
BOND
Southeast Energy-E
0.75%
9
BOND
Lee County Indl-Ref
0.70%
10
BOND
Black Belt Energy-J
0.69%
11
BOND
Texas Muni Gas Acq-A
0.65%
12
BOND
Black Belt Energy-A
0.63%
13
BOND
Univ Ks Hosp Auth-A
0.63%
14
BOND
Black Belt Energy-I
0.63%
15
BOND
Il Fin Auth-Green Bd
0.62%
16
BOND
Se Energy Auth-C
0.60%
17
BOND
Main Street Energy-A
0.59%
18
BOND
Pa Hgr Facs Auth-Ref
0.57%
19
BOND
Energy Southeast-A-1
0.56%
20
BOND
Tx Univ Sys Brd-C
0.53%
Sectors tap a row to see its top 10 holdings
Top holdings — Bonds & Fixed Income
Your 10 largest positions in this sector
1
BOND
Louisville Co Metro-A
1.72%
2
BOND
Black Belt Energy-G
0.95%
3
BOND
Main Street Natural-E
0.83%
4
BOND
Dallas Fort Worth-A-1
0.79%
5
BOND
Ny St Hsg Fin Agy-D-2
0.79%
6
BOND
San Antonio-A
0.77%
7
BOND
Southeast Energy-E
0.75%
8
BOND
Lee County Indl-Ref
0.70%
9
BOND
Black Belt Energy-J
0.69%
10
BOND
Texas Muni Gas Acq-A
0.65%
Geography tap a row to see its top 10 holdings
Top holdings — United States
Your 10 largest positions in this country
1
BOND
Louisville Co Metro-A
1.72%
2
BOND
Black Belt Energy-G
0.95%
3
BOND
Main Street Natural-E
0.83%
4
BOND
Dallas Fort Worth-A-1
0.79%
5
BOND
Ny St Hsg Fin Agy-D-2
0.79%
6
BOND
San Antonio-A
0.77%
7
BOND
Southeast Energy-E
0.75%
8
BOND
Lee County Indl-Ref
0.70%
9
BOND
Black Belt Energy-J
0.69%
10
BOND
Texas Muni Gas Acq-A
0.65%
Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Funds similar to FMUB
FMBAXFidelity Municipal Core Plus Bond Fund
23% overlap
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FSAJXFidelity SAI Tax-Free Bond Fund
20% overlap
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FSMNXFidelity SAI Municipal Income Fund
20% overlap
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FTABXFidelity Tax-Free Bond Fund
19% overlap
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FUENXFidelity Flex Municipal Income Fund
18% overlap
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FHIGXFidelity Municipal Income Fund
16% overlap
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Data source: official SEC Form N-PORT filings (as of 2026-07-31); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.