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Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

MBB vs XLY: how they differ

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

iShares MBS ETF and State Street(R) Consumer Discretionary Select Sector SPDR(R) ETF.

What they hold in common

By the books each fund has filed, MBB and XLY 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 XLY
Freddie Mac 1.07%Amazon.com Inc 22.24%
Government National Mortgage Association 0.97%Tesla Inc 19.66%
UMBS, TBA 0.85%Home Depot Inc/The 5.83%
Government National Mortgage Association 0.69%McDonald's Corp 4.16%
UMBS, TBA 0.66%TJX Cos Inc/The 3.93%
Government National Mortgage Association 0.56%Booking Holdings Inc 3.44%
Government National Mortgage Association 0.55%Lowe's Cos Inc 3.08%
Government National Mortgage Association 0.54%Starbucks Corp 2.90%

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 May 31, 2026.

MBB and XLY on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
MBB
iShares MBS ETF
XLY
State Street(R) Consumer Discretionary Select Sector SPDR(R) ETF
Where it sitsCore index fundCore index fund
IssueriSharesState Street
What it isMbsConsumer discretionary
Total return, 1 year−0.1%−4.1%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−17.6 pts−21.6 pts
Expense ratio0.04%0.08%
Holdings1114447

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.

XLY in plain words

XLY is an index equity fund tracking the Consumer discretionary. Over the year to Sep 11, 2026 it returned −4.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.08% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 47 positions, with the top ten at 69.2%. It sat 8.9% below its high of Jan 12, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, MBB or XLY?
In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and XLY returned −4.1%, so MBB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MBB or XLY?
MBB charges 0.04% a year and XLY charges 0.08%, 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 XLY, ETFIQ, data as of Sep 12, 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 XLY, data as of Sep 12, 2026. https://etfiq.com/compare/any/MBB-XLY Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources