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

In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and URTH +13.1%.

Which is cheaper, MBB or URTH?

MBB is cheaper, by 0.20 percentage points a year. That is about $20 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

MBB vs URTH: Differences, Returns & Fees

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Over the year to Oct 28, 2026, MBB returned −0.8% to URTH's +13.1%; 0% of their weight is in the same names.

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Net assets on Oct 28, 2026: $35.5bn for iShares MBS ETF and $8.9bn for iShares MSCI World ETF.

MBB on its own →URTH on its own →

At a glance

−0.8%

MBB total return, 1 year

+13.1%

URTH total return, 1 year

0.04%

MBB expense ratio

0.24%

URTH expense ratio

Pair scorecard

MBB costs 0.20 points a year less; their one-year returns differ by 13.9 points; MBB is 4.0 times larger.

MBB vs URTH: Differences, Returns & Fees
Measure	MBB	URTH
Return
Measure	MBB	URTH
Total return, 1 year	−0.8%	+13.1%
Benchmark
Measure	MBB	URTH
What it tracks	Bloomberg U.S. MBS Index	MSCI World Index
Cost and size
Measure	MBB	URTH
Expense ratio	0.04%	0.24%
Net assets	$35.5bn	$8.9bn
Holdings
Measure	MBB	URTH
Holdings in common	0%
In the S&P 500, by weight		69%
Top ten holdings, share of the fund		27.2%

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

What they share

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

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 URTH

APPLE 5.60%

NVIDIA 5.50%

MICROSOFT 4.12%

AMAZON.COM INC 2.69%

ALPHABET CLASS A 2.07%

BROADCOM INC 1.70%

ALPHABET CLASS C 1.62%

META PLATFORMS CLASS A 1.49%

Check overlap with more funds →

Side by side

MBB iShares MBS ETF URTH iShares MSCI World ETF

Where it sits Bond ETF Stock ETF

Issuer iShares iShares

What it is Tracks an index of mortgage-backed securities Tracks the MSCI World

Total return, 1 year −0.8% +13.1%

Its benchmark over the same days −1.1% (SPMB) +13.4% (ACWI)

Gap to its benchmark +0.3 pts vs SPMB −0.3 pts vs ACWI

Expense ratio 0.04% 0.24%

Holdings 10813 1254

Net assets $35.5bn $8.9bn

MBB and URTH 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.

URTH

URTH tracks the MSCI World. Over the year to Oct 28, 2026 it returned +13.1% with distributions reinvested, against +13.4% for its benchmark, the MSCI All Country World Index. The prospectus expense ratio is 0.24% a year. By its holdings published by its issuer for Oct 27, 2026, 69% of the fund by weight is stocks the S&P 500 also holds, across 1,254 positions, with the top ten at 27.2%.

Questions people ask

Which returned more over the last year, MBB or URTH?: In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and URTH +13.1%.
Which is cheaper, MBB or URTH?: MBB is cheaper, by 0.20 percentage points a year. That is about $20 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

ACWI vs MBB MBB vs VT AVDV vs MBB MBB vs VYMI URTH vs VGSH URTH vs VGIT URTH vs VCSH TLT vs URTH

Where to next

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

Sources and dates

MBB filings on SEC EDGAR ↗

MBB prospectus with the expense ratio (SEC) ↗

iShares page for MBB ↗

URTH filings on SEC EDGAR ↗

URTH prospectus with the expense ratio (SEC) ↗

iShares page for URTH ↗

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.

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

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