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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

MBB vs URTH: how they differ

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

iShares MBS ETF and iShares MSCI World ETF.

What they hold in common

By the books each fund has filed, MBB and URTH 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 URTH
BLACKROCK CASH CL INST SL AGENCY 7.26%NVIDIA 5.52%
GNMA2 SF 30YR 0.09%APPLE 5.28%
GNMA II 30YR SF - JUMBO-CONFORMING 0.08%MICROSOFT 3.82%
GNMA2 SINGLE FAMILY 30YR 0.04%AMAZON.COM INC 2.67%
GNMA II 30YR 0.03%ALPHABET CLASS A 2.14%
GNMA2 30YR TBA(REG C) 0.03%BROADCOM INC 1.79%
UMBS 15YR TBA(REG B) 0.03%ALPHABET CLASS C 1.70%
FNMA 30YR UMBS MEGA REMIC SUPER 0.02%META PLATFORMS CLASS A 1.56%

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 Sep 10, 2026.

MBB and URTH on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
MBB
iShares MBS ETF
URTH
iShares MSCI World ETF
Where it sitsCore index fundCore index fund
IssueriSharesiShares
What it isMbsMSCI World
Total return, 1 year−0.1%+17.4%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−17.6 pts−0.1 pts
Expense ratio0.04%0.24%
Holdings25991230

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.

URTH in plain words

URTH is an index equity fund tracking the MSCI World. Over the year to Sep 11, 2026 it returned +17.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.24% a year. By its holdings filed for Sep 10, 2026, 70% of the fund by weight is stocks the S&P 500 also holds, across 1230 positions, with the top ten at 26.8%.

Questions people ask

Which returned more over the last year, MBB or URTH?
In the year to Sep 13, 2026, with distributions reinvested, MBB returned −0.1% and URTH returned +17.4%, so URTH returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MBB or URTH?
MBB charges 0.04% a year and URTH charges 0.24%, so MBB 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.

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

A comparison is not a recommendation. Standards and sources