Which returned more over the last year, MBB or XLK?

In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and XLK +27.1%.

Which is cheaper, MBB or XLK?

MBB is cheaper, by 0.04 percentage points a year. That is about $4 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

MBB vs XLK: Differences, Returns & Fees

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Over the year to Oct 28, 2026, MBB returned −0.8% to XLK's +27.1%; 0% of their weight is in the same names.

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Net assets: $35.5bn on Oct 28, 2026 for iShares MBS ETF, and $125.0bn on Oct 27, 2026 for State Street Technology Select Sector SPDR ETF.

MBB on its own →XLK on its own →

At a glance

−0.8%

MBB total return, 1 year

+27.1%

XLK total return, 1 year

0.04%

MBB expense ratio

0.08%

XLK expense ratio

Pair scorecard

MBB costs 0.04 points a year less; their one-year returns differ by 27.9 points; XLK is 3.5 times larger.

MBB vs XLK: Differences, Returns & Fees
Measure	MBB	XLK
Return
Measure	MBB	XLK
Total return, 1 year	−0.8%	+27.1%
Drawdown
Measure	MBB	XLK
Below its high		5.4%, high on Oct 6, 2026
Benchmark
Measure	MBB	XLK
What it tracks	Bloomberg U.S. MBS Index	Technology Select Sector Index
Cost and size
Measure	MBB	XLK
Expense ratio	0.04%	0.08%
Net assets, as of Oct 26, 2026	$35.6bn	$122.9bn
Holdings
Measure	MBB	XLK
Holdings in common	0%
In the S&P 500, by weight		100%
Top ten holdings, share of the fund		64.6%

Holdings in common uses holdings dated Oct 27, 2026. Method

What they share

By the books each fund has filed, MBB and XLK hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

50%

0 half 100%

half

0% in common

Positions both hold · largest shared weight first MBB XLK

Only in one fund ↓

Only in MBB

BLACKROCK CASH CL INST SL AGENCY 5.45%

FHLMC 30YR UMBS SUPER 1.05%

UMBS 30YR TBA(REG A) 0.60%

GNMA2 30YR 0.59%

GNMA2 30YR 0.54%

FNMA 30YR UMBS 0.53%

GNMA2 30YR 0.53%

GNMA2 30YR 0.52%

Only in XLK

NVIDIA CORP 15.22%

APPLE INC 14.62%

MICROSOFT CORP 11.38%

ADVANCED MICRO DEVICES 4.78%

BROADCOM INC 4.70%

MICRON TECHNOLOGY INC 4.02%

INTEL CORP 2.72%

PALANTIR TECHNOLOGIES INC A 2.67%

Check overlap with more funds →

Side by side

MBB iShares MBS ETF XLK State Street Technology Select Sector SPDR ETF

Where it sits Bond ETF Stock ETF

Issuer iShares State Street

What it is Tracks an index of mortgage-backed securities Tracks an index of Technology

Total return, 1 year −0.8% +27.1%

Its benchmark over the same days −1.1% (SPMB) +13.6% (SPY)

Gap to its benchmark +0.3 pts vs SPMB +13.5 pts vs SPY

Expense ratio 0.04% 0.08%

Holdings 10813 76

Net assets, MBB as of Oct 28, 2026 and XLK as of Oct 27, 2026 $35.5bn $125.0bn

MBB and XLK on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

Alert

About each fund

MBB

MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.

XLK

XLK tracks an index of Technology. Over the year to Oct 28, 2026 it returned +27.1% with distributions reinvested, against +13.6% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.08% a year. By its holdings published by its issuer for Oct 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 76 positions, with the top ten at 64.6%. It sat 5.4% below its high of Oct 6, 2026 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, MBB or XLK?: In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and XLK +27.1%.
Which is cheaper, MBB or XLK?: MBB is cheaper, by 0.04 percentage points a year. That is about $4 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

MBB vs VGT IYW vs MBB FTEC vs MBB IGM vs MBB TLT vs XLK BIL vs XLK IGSB vs XLK SHV vs XLK

Where to next

MBB on its own →XLK on its own →Hold both: look the portfolio through →Rankings →MBB dividend history →MBB holdings →XLK dividend history →XLK holdings →Standards and sources →

Sources and dates

MBB filings on SEC EDGAR ↗

MBB prospectus with the expense ratio (SEC) ↗

iShares page for MBB ↗

XLK filings on SEC EDGAR ↗

XLK prospectus with the expense ratio (SEC) ↗

State Street website ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, MBB against XLK, data as of Oct 28, 2026. https://etfiq.com/compare/any/mbb-vs-xlk

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.