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

In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and SPMO +18.4%.

Which is cheaper, MBB or SPMO?

MBB is cheaper, by 0.09 percentage points a year. That is about $9 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

MBB vs SPMO: Differences, Returns & Fees

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Over the year to Oct 28, 2026, MBB returned −0.8% to SPMO's +18.4%; 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 $22.3bn on Oct 27, 2026 for Invesco S&P 500 Momentum ETF.

MBB on its own →SPMO on its own →

At a glance

−0.8%

MBB total return, 1 year

+18.4%

SPMO total return, 1 year

0.04%

MBB expense ratio

0.13%

SPMO expense ratio

Pair scorecard

MBB costs 0.09 points a year less; their one-year returns differ by 19.2 points; MBB is 1.6 times larger.

MBB vs SPMO: Differences, Returns & Fees
Measure	MBB	SPMO
Return
Measure	MBB	SPMO
Total return, 1 year	−0.8%	+18.4%
Drawdown
Measure	MBB	SPMO
Below its high		10.2%, high on Jun 22, 2026
Benchmark
Measure	MBB	SPMO
What it tracks	Bloomberg U.S. MBS Index	S&P 500 Momentum Index
Cost and size
Measure	MBB	SPMO
Expense ratio	0.04%	0.13%
Net assets, as of Oct 26, 2026	$35.6bn	$21.9bn
Holdings
Measure	MBB	SPMO
Holdings in common	0%
In the S&P 500, by weight		100%
Top ten holdings, share of the fund		50.7%

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

What they share

By the books each fund has filed, MBB and SPMO 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 SPMO

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 SPMO

Apple Inc 9.95%

Micron Technology Inc 8.80%

Advanced Micro Devices Inc 5.48%

Johnson & Johnson 4.86%

Alphabet Inc 4.76%

Intel Corp 4.60%

Alphabet Inc 3.82%

ExxonMobil Holdings Corp 3.57%

Check overlap with more funds →

Side by side

MBB iShares MBS ETF SPMO Invesco S&P 500 Momentum ETF

Where it sits Bond ETF Stock ETF

Issuer iShares Invesco

What it is Tracks an index of mortgage-backed securities Tracks the S&P 500 Momentum

Total return, 1 year −0.8% +18.4%

Its benchmark over the same days −1.1% (SPMB) +13.7% (VOO)

Gap to its benchmark +0.3 pts vs SPMB +4.7 pts vs VOO

Expense ratio 0.04% 0.13%

Holdings 10813 101

Net assets, MBB as of Oct 28, 2026 and SPMO as of Oct 27, 2026 $35.5bn $22.3bn

MBB and SPMO 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.

SPMO

SPMO tracks the S&P 500 Momentum. Over the year to Oct 28, 2026 it returned +18.4% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.13% 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 101 positions, with the top ten at 50.7%. It sat 10.2% below its high of Jun 22, 2026 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, MBB or SPMO?: In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and SPMO +18.4%.
Which is cheaper, MBB or SPMO?: MBB is cheaper, by 0.09 percentage points a year. That is about $9 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

MBB vs USMV MBB vs RDVY CGGR vs MBB MBB vs SPHQ SPMO vs TLT BIL vs SPMO PULS vs SPMO SPMO vs USFR

Where to next

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

Sources and dates

MBB filings on SEC EDGAR ↗

MBB prospectus with the expense ratio (SEC) ↗

iShares page for MBB ↗

SPMO filings on SEC EDGAR ↗

SPMO prospectus with the expense ratio (SEC) ↗

Invesco page for SPMO ↗

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 SPMO, data as of Oct 28, 2026. https://etfiq.com/compare/any/mbb-vs-spmo

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