LMUB vs TAFM: Differences, Returns & Fees

On May 31, 2026 LMUB's duration was 9.8 years and TAFM's 6.4; LMUB charges 0.09% to TAFM's 0.28%. Net assets: $1.6bn on Oct 9, 2026 for iShares Long-Term National Muni Bond ETF, and $1.0bn on Oct 8, 2026 for AB Tax-Aware Intermediate Municipal ETF.

LMUB costs 0.19 points a year less; their one-year returns differ by 1.6 points; LMUB is 1.5 times larger.

LMUBTAFM
Expense ratio0.09%0.28%
Net assets, as of Oct 8, 2026$1.6bn$1.0bn
Total return, 1 year−3.7%−2.1%
What it tracksICE Long AMT-Free US National Municipal IndexNo index, actively managed
Holdings in common1%
Below its high8.4%, high on Jul 2, 20265.6%, high on Jul 6, 2026

Holdings in common uses holdings dated May 31, 2026.

−3.7%
LMUB total return, 1 year
−2.1%
TAFM total return, 1 year
0.09%
LMUB expense ratio
0.28%
TAFM expense ratio

What they hold in common

By the books each fund has filed, LMUB and TAFM hold 1% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated May 31, 2026.

half

1% in common

Positions both hold, largest shared weight first
Holding LMUB TAFM
Triborough Bridge & Tunnel Authority, Series 2022C, due May 15, 2052 0.32% 0.26%
County of Miami-Dade Water & Sewer System, Series 2025A, due Oct 1, 2055 0.19% 0.34%
County of Cuyahoga, Series 2026, due Dec 1, 2061 0.13% 0.17%
Nebraska Public Power District, Series 2026A, due Jan 1, 2055 0.08% 0.17%
State of California, due Oct 1, 2042 0.07% 0.18%
Onondaga Civic Development Corp., Series 2025, due Dec 1, 2056 0.07% 0.18%
Municipal Electric Authority of Georgia, Series 2022A, due Jul 1, 2052 0.06% 0.33%
New Jersey Transportation Trust Fund Authority, Series 2022A, due Jun 15, 2039 0.02% 0.18%
Board of Regents of the University of Texas System, Series 2019B, due Aug 15, 2049 0.01% 0.18%
Metropolitan Transportation Authority, Series 2025A, due Nov 15, 2045 0.01% 0.33%
Grand Parkway Transportation Corp., Series 2020C, due Oct 1, 2045 0.01% 0.39%
Oklahoma Turnpike Authority, Series 2025A, due Jan 1, 2045 0.00% 0.17%
Only in LMUB
Commonwealth of Massachusetts, Series 2023D, due Oct 1, 2052 0.85%
State of Washington, Series 2026D, due Jun 1, 2046 0.70%
State of Illinois, Series 2025-E11, due Sep 1, 2042 0.65%
State of Illinois, Series 2023C, due Dec 1, 2043 0.65%
Pennsylvania Turnpike Commission, Series 2026A, due Dec 1, 2056 0.64%
State of Texas, Series 2025, due Oct 1, 2039 0.63%
New York City Transitional Finance Authority Future Tax Secured, Series 2025E, due Nov 1, 2047 0.63%
Oklahoma Capitol Improvement Authority, Series 2025A, due Jul 1, 2050 0.63%
Only in TAFM
MARYLAND ST ECON DEV CORP PRIV ACTIVITY REVENUE, due Jun 30, 2055 0.74%
BROWARD CNTY FL SCH DIST, due Jun 25, 2026 0.69%
KENTUCKY ST PUBLIC ENERGY AUTH GAS SPLY REVENUE, due May 1, 2036 0.61%
CHICAGO IL TRANSIT AUTH SALES TAX RECPTS REVENUE, due Dec 1, 2049 0.59%
PUBLIC FIN AUTH WI TOLL REVENUE, due Jun 30, 2060 0.57%
CALIFORNIA CMNTY CHOICE FING AUTH CLEAN ENERGY PROJ REVENUE, due Aug 1, 2055 0.54%
VAIL CO COPS, due Dec 1, 2064 0.52%
NEW YORK ST TRANSPRTN DEV CORP SPL FAC REVENUE, due Jun 30, 2059 0.52%

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On the same fields

LMUB
iShares Long-Term National Muni Bond ETF
TAFM
AB Tax-Aware Intermediate Municipal ETF
Where it sits Bond ETF Bond ETF
What it is Tracks an index Actively managed
Total return, 1 year −3.7% −2.1%
S&P 500 over the same days +17.3% +17.3%
Gap to the S&P 500 −20.9 pts −19.4 pts
Expense ratio 0.09% 0.28%
Holdings 975 564
Net assets, LMUB as of Oct 9, 2026 and TAFM as of Oct 8, 2026 $1.6bn $1.0bn

LMUB and TAFM on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

LMUB in plain words

LMUB tracks an index. Over the year to Oct 9, 2026 it returned −3.7% with distributions reinvested. The prospectus expense ratio is 0.09% a year. It sat 8.4% below its high of Jul 2, 2026 on Oct 9, 2026.

TAFM in plain words

TAFM is actively managed and tracks no index. Over the year to Oct 9, 2026 it returned −2.1% with distributions reinvested. The prospectus expense ratio is 0.28% a year. It sat 5.6% below its high of Jul 6, 2026 on Oct 9, 2026.

Questions people ask

Which returned more over the last year, LMUB or TAFM?
In the year to Oct 9, 2026, with distributions reinvested, LMUB returned −3.7% and TAFM −2.1%.
Which is cheaper, LMUB or TAFM?
LMUB is cheaper, by 0.19 percentage points a year. That is about $19 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
Where these figures came from

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, LMUB against TAFM, data as of Oct 9, 2026. https://etfiq.com/compare/any/lmub-vs-tafm

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.