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

In the year to Sep 12, 2026, with distributions reinvested, ACWX returned +23.0% and MBB returned −0.1%, so ACWX returned more. One year is one year; the longer windows are in the table.

Which is cheaper, ACWX or MBB?

ACWX charges 0.32% a year and MBB charges 0.04%, so MBB is cheaper. Fees come from each fund's prospectus.

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

ACWX vs MBB: how they differ

ACWX and MBB hold 0% of their weight in the same names, and ACWX returned more over the year.

iShares MSCI ACWI ex U.S. ETF and iShares MBS ETF.

What they hold in common

By the books each fund has filed, ACWX and MBB hold 0% of their money in the same securities at the same weight.

Largest positions each one holds and the other does not
Only in ACWX	Only in MBB
Taiwan Semiconductor Manufacturing Compa 4.69%	Freddie Mac 1.07%
ASML Holding N.V. 1.54%	Government National Mortgage Association 0.97%
SK hynix Inc. 1.33%	UMBS, TBA 0.85%
Tencent Holdings Limited 1.07%	Government National Mortgage Association 0.69%
HSBC HOLDINGS PLC 0.86%	UMBS, TBA 0.66%
ASTRAZENECA PLC 0.81%	Government National Mortgage Association 0.56%
Alibaba Group Holding Limited 0.79%	Government National Mortgage Association 0.55%
Novartis AG 0.77%	Government National Mortgage Association 0.54%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Apr 30, 2026 and May 31, 2026.

ACWX and MBB on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	ACWX iShares MSCI ACWI ex U.S. ETF	MBB iShares MBS ETF
Where it sits	Core index fund	Core index fund
Issuer	iShares	iShares
What it is	MSCI ACWI ex U.S.	Mbs
Total return, 1 year	+23.0%	−0.1%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	+5.5 pts	−17.6 pts
Expense ratio	0.32%	0.04%
Holdings	1759	11144

ACWX in plain words

ACWX is an index equity fund tracking the MSCI ACWI ex U.S.. Over the year to Sep 11, 2026 it returned +23.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.32% a year. By its holdings filed for Apr 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1759 positions, with the top ten at 14.6%.

MBB in plain words

MBB is a bond fund tracking the Mbs. Over the year to Sep 11, 2026 it returned −0.1% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.04% a year. It sat 3.3% below its high of Feb 27, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, ACWX or MBB?: In the year to Sep 12, 2026, with distributions reinvested, ACWX returned +23.0% and MBB returned −0.1%, so ACWX returned more. One year is one year; the longer windows are in the table.
Which is cheaper, ACWX or MBB?: ACWX charges 0.32% a year and MBB charges 0.04%, so MBB is cheaper. Fees come from each fund's prospectus.

Other comparisons

Where to next

Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

ACWX against MBB, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, ACWX against MBB, data as of Sep 12, 2026. https://etfiq.com/compare/any/ACWX-MBB Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources