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 XLRE: how they differ

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

iShares MBS ETF and State Street(R) Real Estate Select Sector SPDR(R) ETF.

What they hold in common

By the books each fund has filed, MBB and XLRE 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 XLRE
BLACKROCK CASH CL INST SL AGENCY 7.26%WELLTOWER INC 11.71%
GNMA2 SF 30YR 0.09%PROLOGIS INC 8.96%
GNMA II 30YR SF - JUMBO-CONFORMING 0.08%EQUINIX INC 7.10%
GNMA2 SINGLE FAMILY 30YR 0.04%AMERICAN TOWER CORP 5.67%
GNMA II 30YR 0.03%VIVMARK RESIDENTIAL 5.06%
GNMA2 30YR TBA(REG C) 0.03%DIGITAL REALTY TRUST INC 5.04%
UMBS 15YR TBA(REG B) 0.03%SIMON PROPERTY GROUP INC 4.67%
FNMA 30YR UMBS MEGA REMIC SUPER 0.02%VENTAS INC 4.66%

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 XLRE on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
MBB
iShares MBS ETF
XLRE
State Street(R) Real Estate Select Sector SPDR(R) ETF
Where it sitsCore index fundCore index fund
IssueriSharesState Street
What it isMbsReal estate
Total return, 1 year−0.1%+5.6%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−17.6 pts−11.9 pts
Expense ratio0.04%0.08%
Holdings259932

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.

XLRE in plain words

XLRE is an index equity fund tracking the Real estate. Over the year to Sep 11, 2026 it returned +5.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.08% a year. By its holdings filed for Sep 10, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 32 positions, with the top ten at 61.9%. It sat 5.6% below its high of Jul 28, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, MBB or XLRE?
In the year to Sep 13, 2026, with distributions reinvested, MBB returned −0.1% and XLRE returned +5.6%, so XLRE returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MBB or XLRE?
MBB charges 0.04% a year and XLRE charges 0.08%, 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 XLRE, 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 XLRE, data as of Sep 13, 2026. https://etfiq.com/compare/any/mbb-vs-xlre Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources