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

ETFIQetfiq.com · independent ETF data

HYMB vs MBB: how they differ

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

State Street(R) SPDR Nuveen ICE High Yield Municipal Bond ETF and iShares MBS ETF.

What they hold in common

By the books each fund has filed, HYMB 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 HYMBOnly in MBB
Puerto Rico Sales Tax Financing Corp Sal 2.53%Freddie Mac 1.07%
Puerto Rico Sales Tax Financing Corp Sal 1.54%Government National Mortgage Association 0.97%
Buckeye Tobacco Settlement Financing Aut 1.27%UMBS, TBA 0.85%
Commonwealth of Puerto Rico 0.64%Government National Mortgage Association 0.69%
Puerto Rico Sales Tax Financing Corp Sal 0.62%UMBS, TBA 0.66%
Commonwealth of Puerto Rico 0.55%Government National Mortgage Association 0.56%
New York Liberty Development Corp 0.47%Government National Mortgage Association 0.55%
Metropolitan Pier & Exposition Authority 0.43%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 Jun 30, 2026 and May 31, 2026.

HYMB and MBB on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
HYMB
State Street(R) SPDR Nuveen ICE High Yield Municipal Bond ETF
MBB
iShares MBS ETF
Where it sitsCore index fundCore index fund
IssuerState StreetiShares
What it isSPDR Nuveen ICE High Yield Municipal BondMbs
Total return, 1 year+1.7%−0.1%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−15.8 pts−17.6 pts
Expense ratio0.35%0.04%
Holdings186711144

HYMB in plain words

HYMB is a bond fund tracking the SPDR Nuveen ICE High Yield Municipal Bond. Over the year to Sep 11, 2026 it returned +1.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.35% a year. It sat 3.8% below its high of Jul 2, 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, HYMB or MBB?
In the year to Sep 12, 2026, with distributions reinvested, HYMB returned +1.7% and MBB returned −0.1%, so HYMB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, HYMB or MBB?
HYMB charges 0.35% a year and MBB charges 0.04%, so MBB is cheaper. Fees come from each fund's prospectus.

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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.

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

A comparison is not a recommendation. Standards and sources