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

In the year to Sep 13, 2026, with distributions reinvested, JNK returned +3.3% and MBB returned −0.1%, so JNK returned more. One year is one year; the longer windows are in the table.

Which is cheaper, JNK or MBB?

JNK charges 0.40% 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

JNK vs MBB: how they differ

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

State Street(R) SPDR(R) Bloomberg High Yield Bond ETF and iShares MBS ETF.

What they hold in common

By the books each fund has filed, JNK 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 JNK	Only in MBB
1261229 BC LTD 0.64%	BLACKROCK CASH CL INST SL AGENCY 7.26%
MERIDIAN ARC HOLDCO LLC 0.58%	GNMA2 SF 30YR 0.09%
ECHOSTAR CORP 0.52%	GNMA II 30YR SF - JUMBO-CONFORMING 0.08%
PR RNO PROPERTY OWNER 1 0.49%	GNMA2 SINGLE FAMILY 30YR 0.04%
CLOUD SOFTWARE GRP INC 0.42%	GNMA II 30YR 0.03%
QUIKRETE HOLDINGS INC 0.41%	GNMA2 30YR TBA(REG C) 0.03%
DISH NETWORK CORP 0.41%	UMBS 15YR TBA(REG B) 0.03%
SV RNO PROPERTY OWNER 1 0.40%	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 Jun 30, 2026 and Sep 10, 2026.

JNK and MBB on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
	JNK State Street(R) SPDR(R) Bloomberg High Yield Bond ETF	MBB iShares MBS ETF
Where it sits	Core index fund	Core index fund
Issuer	State Street	iShares
What it is	SPDR Bloomberg High Yield Bond	Mbs
Total return, 1 year	+3.3%	−0.1%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−14.2 pts	−17.6 pts
Expense ratio	0.40%	0.04%
Holdings	1198	2599

JNK in plain words

JNK is a bond fund tracking the SPDR Bloomberg High Yield Bond. Over the year to Sep 11, 2026 it returned +3.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.40% a year.

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, JNK or MBB?: In the year to Sep 13, 2026, with distributions reinvested, JNK returned +3.3% and MBB returned −0.1%, so JNK returned more. One year is one year; the longer windows are in the table.
Which is cheaper, JNK or MBB?: JNK charges 0.40% 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.

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

A comparison is not a recommendation. Standards and sources