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

In the year to Oct 28, 2026, with distributions reinvested, ACWX returned +14.3% and MBB −0.8%.

Which is cheaper, ACWX or MBB?

MBB is cheaper, by 0.28 percentage points a year. That is about $28 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

ACWX vs MBB: Differences, Returns & Fees

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Over the year to Oct 28, 2026, ACWX returned +14.3% to MBB's −0.8%; 0% of their weight is in the same names.

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Net assets: $17.9bn on Oct 27, 2026 for iShares MSCI ACWI ex U.S. ETF, and $35.5bn on Oct 28, 2026 for iShares MBS ETF.

ACWX on its own →MBB on its own →

At a glance

+14.3%

ACWX total return, 1 year

−0.8%

MBB total return, 1 year

0.32%

ACWX expense ratio

0.04%

MBB expense ratio

Pair scorecard

MBB costs 0.28 points a year less; their one-year returns differ by 15.1 points; MBB is 2.0 times larger.

ACWX vs MBB: Differences, Returns & Fees
Measure	ACWX	MBB
Return
Measure	ACWX	MBB
Total return, 1 year	+14.3%	−0.8%
Drawdown
Measure	ACWX	MBB
Below its high	4.9%, high on Sep 4, 2026
Benchmark
Measure	ACWX	MBB
What it tracks	MSCI ACWI ex USA Index	Bloomberg U.S. MBS Index
Cost and size
Measure	ACWX	MBB
Expense ratio	0.32%	0.04%
Net assets, as of Oct 23, 2026	$17.5bn	$35.5bn
Holdings
Measure	ACWX	MBB
Holdings in common	0%
In the S&P 500, by weight	0%
Top ten holdings, share of the fund	15.6%

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

What they share

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

Only in one fund ↓

Only in ACWX

TAIWAN SEMICONDUCTOR MANUFACTURING 5.07%

SAMSUNG ELECTRONICS LTD 2.19%

ASML HOLDING 1.77%

SK HYNIX 1.56%

ROCHE PS PAR AG 0.95%

TENCENT HOLDINGS 0.85%

SHELL 0.84%

HSBC HOLDINGS PLC 0.81%

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%

Check overlap with more funds →

Side by side

ACWX iShares MSCI ACWI ex U.S. ETF MBB iShares MBS ETF

Where it sits Stock ETF Bond ETF

Issuer iShares iShares

What it is Tracks the MSCI ACWI ex U.S. Tracks an index of mortgage-backed securities

Total return, 1 year +14.3% −0.8%

Its benchmark over the same days not measured −1.1% (SPMB)

Gap to its benchmark not measured +0.3 pts vs SPMB

Expense ratio 0.32% 0.04%

Holdings 1939 10813

Net assets, ACWX as of Oct 27, 2026 and MBB as of Oct 28, 2026 $17.9bn $35.5bn

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

Alert

About each fund

ACWX

ACWX tracks the MSCI ACWI ex U.S.. Over the year to Oct 28, 2026 it returned +14.3% with distributions reinvested. The prospectus expense ratio is 0.32% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1,939 positions, with the top ten at 15.6%. It sat 4.9% below its high of Sep 4, 2026 on Oct 28, 2026.

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.

Questions people ask

Which returned more over the last year, ACWX or MBB?: In the year to Oct 28, 2026, with distributions reinvested, ACWX returned +14.3% and MBB −0.8%.
Which is cheaper, ACWX or MBB?: MBB is cheaper, by 0.28 percentage points a year. That is about $28 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

ACWX vs BNDX ACWX vs EMB ACWX vs VBIL ACWX vs PFF FENI vs MBB IXUS vs MBB MBB vs VEU MBB vs SCHF

Where to next

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

Sources and dates

ACWX and MBB filings on SEC EDGAR ↗

ACWX prospectus with the expense ratio (SEC) ↗

iShares page for ACWX ↗

MBB prospectus with the expense ratio (SEC) ↗

iShares page for MBB ↗

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

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