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Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

MUB vs VUSB: how they differ

MUB and VUSB hold 0% of their weight in the same names, and VUSB returned more over the year.

iShares National Muni Bond ETF and Vanguard Ultra-Short Bond ETF.

What they hold in common

By the books each fund has filed, MUB and VUSB hold 0% of their money in the same securities at the same weight.

Largest positions each one holds and the other does not
Only in MUBOnly in VUSB
HOUSTON TEX HIGHER ED FIN CORP 0.13%United States Treasury Bill 4.24%
DISTRICT COLUMBIA UNIV REV 0.10%United States Treasury Note/Bond 0.68%
ECTOR CNTY TEX 0.08%PNC Financial Services Group Inc/The 0.59%
NEW ORLEANS LA 0.08%United States Treasury Note/Bond 0.53%
PORT TACOMA WASH REV 0.08%Regions Bank/Birmingham AL 0.52%
CONTRA COSTA CALIF CMNTY COLLE 0.06%US Bancorp 0.51%
LOS ANGELES CALIF 0.06%Charles Schwab Corp/The 0.50%
LOS ANGELES CNTY CALIF 0.06%Truist Bank 0.45%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and Sep 10, 2026.

MUB and VUSB on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
MUB
iShares National Muni Bond ETF
VUSB
Vanguard Ultra-Short Bond ETF
Where it sitsCore index fundCore index fund
IssueriSharesVanguard
What it isNational Muni BondUltra-Short Bond
Total return, 1 year+0.1%+3.7%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−17.4 pts−13.8 pts
Expense ratio0.05%0.10%
Holdings52151281

MUB in plain words

MUB is a bond fund tracking the National Muni Bond. Over the year to Sep 11, 2026 it returned +0.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.05% a year. It sat 3.6% below its high of Jul 6, 2026 on Sep 11, 2026.

VUSB in plain words

VUSB is a cash and treasury bills tracking the Ultra-Short Bond. Over the year to Sep 11, 2026 it returned +3.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.10% a year.

Questions people ask

Which returned more over the last year, MUB or VUSB?
In the year to Sep 13, 2026, with distributions reinvested, MUB returned +0.1% and VUSB returned +3.7%, so VUSB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MUB or VUSB?
MUB charges 0.05% a year and VUSB charges 0.10%, so MUB is cheaper. Fees come from each fund's prospectus.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

MUB against VUSB, ETFIQ, data as of Sep 13, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, MUB against VUSB, data as of Sep 13, 2026. https://etfiq.com/compare/any/mub-vs-vusb Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources