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

In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and SPYG +12.2%.

Which is cheaper, MBB or SPYG?

Neither: MBB and SPYG both charge 0.04% a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

MBB vs SPYG: Differences, Returns & Fees

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Over the year to Oct 28, 2026, MBB returned −0.8% to SPYG's +12.2%; 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 $55.9bn on Oct 27, 2026 for State Street SPDR Portfolio S&P 500 Growth ETF.

MBB on its own →SPYG on its own →

At a glance

−0.8%

MBB total return, 1 year

+12.2%

SPYG total return, 1 year

0.04%

MBB expense ratio

0.04%

SPYG expense ratio

Pair scorecard

Both cost 0.04% a year; their one-year returns differ by 13.0 points; SPYG is 1.6 times larger.

Points (pts) are percentage points.

MBB vs SPYG: Differences, Returns & Fees
Measure	MBB	SPYG
Return
Measure	MBB	SPYG
Total return, 1 year	−0.8%	+12.2%
Drawdown
Measure	MBB	SPYG
Below its high		4.1%, high on Oct 6, 2026
Benchmark
Measure	MBB	SPYG
What it tracks	Bloomberg U.S. MBS Index	S&P 500 Growth Index
Cost and size
Measure	MBB	SPYG
Expense ratio	0.04%	0.04%
Net assets, as of Oct 26, 2026	$35.6bn	$55.3bn
Holdings
Measure	MBB	SPYG
Holdings in common	0%
In the S&P 500, by weight		100%
Top ten holdings, share of the fund		59.6%

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

What they share

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

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 SPYG

NVIDIA CORP 14.61%

MICROSOFT CORP 10.93%

APPLE INC 7.01%

ALPHABET INC CL A 5.21%

BROADCOM INC 4.51%

ALPHABET INC CL C 4.17%

META PLATFORMS INC CLASS A 3.79%

AMAZON.COM INC 3.65%

Check overlap with more funds →

Side by side

MBB iShares MBS ETF SPYG State Street SPDR Portfolio S&P 500 Growth ETF

Where it sits Bond ETF Stock ETF

Issuer iShares State Street

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

Total return, 1 year −0.8% +12.2%

Its benchmark over the same days −1.1% (SPMB) +12.1% (IVW)

Gap to its benchmark +0.3 pts vs SPMB +0.1 pts vs IVW

Expense ratio 0.04% 0.04%

Holdings 10813 152

Net assets, MBB as of Oct 28, 2026 and SPYG as of Oct 27, 2026 $35.5bn $55.9bn

MBB and SPYG 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.

SPYG

SPYG tracks the S&P 500 Growth. Over the year to Oct 28, 2026 it returned +12.2% with distributions reinvested, against +12.1% for its benchmark, the S&P 500 Growth Index. 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 152 positions, with the top ten at 59.6%. It sat 4.1% below its high of Oct 6, 2026 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, MBB or SPYG?: In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and SPYG +12.2%.
Which is cheaper, MBB or SPYG?: Neither: MBB and SPYG both charge 0.04% a year. Fees come from each fund's prospectus.

Other comparisons

MBB vs SCHG MBB vs VOOG IWF vs MBB MBB vs VUG SPYG vs TLT PULS vs SPYG SPYG vs USFR SCHP vs SPYG

Where to next

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

Sources and dates

MBB filings on SEC EDGAR ↗

MBB prospectus with the expense ratio (SEC) ↗

iShares page for MBB ↗

SPYG filings on SEC EDGAR ↗

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

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