Get the weekly note

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

ETFIQetfiq.com · independent ETF data

MBB vs VXUS: how they differ

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

iShares MBS ETF and Vanguard Total International Stock Index Fund.

What they hold in common

By the books each fund has filed, MBB and VXUS 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 MBBOnly in VXUS
BLACKROCK CASH CL INST SL AGENCY 7.26%Taiwan Semiconductor Manufacturing Co Lt 3.97%
GNMA2 SF 30YR 0.09%Samsung Electronics Co Ltd 1.67%
GNMA II 30YR SF - JUMBO-CONFORMING 0.08%ASML Holding NV 1.32%
GNMA2 SINGLE FAMILY 30YR 0.04%SK hynix Inc 1.14%
GNMA II 30YR 0.03%Tencent Holdings Ltd 0.89%
GNMA2 30YR TBA(REG C) 0.03%HSBC Holdings PLC 0.74%
UMBS 15YR TBA(REG B) 0.03%Alibaba Group Holding Ltd 0.69%
FNMA 30YR UMBS MEGA REMIC SUPER 0.02%AstraZeneca PLC 0.67%

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 Apr 30, 2026 and Sep 10, 2026.

MBB and VXUS on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
MBB
iShares MBS ETF
VXUS
Vanguard Total International Stock Index Fund
Where it sitsCore index fundCore index fund
IssueriSharesVanguard
What it isMbsTotal International Stock
Total return, 1 year−0.1%+22.3%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−17.6 pts+4.8 pts
Expense ratio0.04%0.05%
Holdings25998775

MBB in plain words

MBB is a bond fund tracking the Mbs. 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 0.04% a year. It sat 3.3% below its high of Feb 27, 2026 on Sep 11, 2026.

VXUS in plain words

VXUS is an index equity fund tracking the Total International Stock. Over the year to Sep 11, 2026 it returned +22.3% 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. By its holdings filed for Apr 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 8775 positions, with the top ten at 12.4%.

Questions people ask

Which returned more over the last year, MBB or VXUS?
In the year to Sep 13, 2026, with distributions reinvested, MBB returned −0.1% and VXUS returned +22.3%, so VXUS returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MBB or VXUS?
MBB charges 0.04% a year and VXUS charges 0.05%, so MBB is cheaper. Fees come from each fund's prospectus.

Other comparisons

Where to next

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.

MBB against VXUS, 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, MBB against VXUS, data as of Sep 13, 2026. https://etfiq.com/compare/any/mbb-vs-vxus Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources