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

In the year to Sep 13, 2026, with distributions reinvested, IEMG returned +30.6% and MBB returned −0.1%, so IEMG returned more. One year is one year; the longer windows are in the table.

Which is cheaper, IEMG or MBB?

IEMG charges 0.09% a year and MBB charges 0.04%, so MBB is cheaper. Fees come from each fund's prospectus.

Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

IEMG vs MBB: how they differ

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

iShares Core MSCI Emerging Markets ETF and iShares MBS ETF.

What they hold in common

By the books each fund has filed, IEMG 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 IEMG	Only in MBB
TAIWAN SEMICONDUCTOR MANUFACTURING 13.46%	BLACKROCK CASH CL INST SL AGENCY 7.26%
SAMSUNG ELECTRONICS LTD 6.62%	GNMA2 SF 30YR 0.09%
SK HYNIX 5.38%	GNMA II 30YR SF - JUMBO-CONFORMING 0.08%
TENCENT HOLDINGS 2.35%	GNMA2 SINGLE FAMILY 30YR 0.04%
ALIBABA GROUP HOLDING 1.61%	GNMA II 30YR 0.03%
MEDIATEK 1.52%	GNMA2 30YR TBA(REG C) 0.03%
SAMSUNG ELECTRONICS NON VOTING PRE 0.86%	UMBS 15YR TBA(REG B) 0.03%
CHINA CONSTRUCTION BANK CORP H 0.74%	FNMA 30YR UMBS MEGA REMIC SUPER 0.02%

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 Sep 10, 2026.

IEMG and MBB on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
	IEMG iShares Core MSCI Emerging Markets ETF	MBB iShares MBS ETF
Where it sits	Core index fund	Core index fund
Issuer	iShares	iShares
What it is	Core MSCI Emerging Markets	Mbs
Total return, 1 year	+30.6%	−0.1%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	+13.1 pts	−17.6 pts
Expense ratio	0.09%	0.04%
Holdings	1832	2599

IEMG in plain words

IEMG is an index equity fund tracking the Core MSCI Emerging Markets. Over the year to Sep 11, 2026 it returned +30.6% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.09% a year. By its holdings filed for Sep 10, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1832 positions, with the top ten at 34.0%. It sat 4.0% below its high of Jun 22, 2026 on Sep 11, 2026.

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, IEMG or MBB?: In the year to Sep 13, 2026, with distributions reinvested, IEMG returned +30.6% and MBB returned −0.1%, so IEMG returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IEMG or MBB?: IEMG charges 0.09% 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.

IEMG against MBB, ETFIQ, data as of Sep 13, 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, IEMG against MBB, data as of Sep 13, 2026. https://etfiq.com/compare/any/iemg-vs-mbb Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources