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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

BINC vs MBB: how they differ

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

iShares Flexible Income Active ETF and iShares MBS ETF.

What they hold in common

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

Positions BINC and MBB both hold, largest shared weight first
HoldingBINCMBB
UMBS, TBA0.53%0.34%
UMBS, TBA0.05%0.85%
UMBS, TBA2.81%0.04%
Largest positions each one holds and the other does not
Only in BINCOnly in MBB
UMBS, TBA 5.13%Freddie Mac 1.07%
UMBS, TBA 2.14%Government National Mortgage Association 0.97%
UMBS, TBA 2.10%Government National Mortgage Association 0.69%
UMBS, TBA 1.52%UMBS, TBA 0.66%
iShares iBoxx USD High Yield Corporate B 1.02%Government National Mortgage Association 0.56%
iShares iBoxx USD Investment Grade Corpo 0.64%Government National Mortgage Association 0.55%
MORGAN STANLEY FIN LLC 0.45%Government National Mortgage Association 0.54%
French Republic Government Bonds OAT 0.42%Fannie Mae 0.53%

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.

BINC and MBB on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
BINC
iShares Flexible Income Active ETF
MBB
iShares MBS ETF
Where it sitsCore index fundCore index fund
IssueriSharesiShares
What it isFlexible IncomeMbs
Total return, 1 year+2.0%−0.1%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−15.5 pts−17.6 pts
Expense rationot published0.04%
Holdings412411144

BINC in plain words

BINC is an index equity fund tracking the Flexible Income. Over the year to Sep 11, 2026 it returned +2.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. By its holdings filed for Apr 30, 2026, 2% of the fund by weight is stocks the S&P 500 also holds, across 4124 positions, with the top ten at 17.4%.

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, BINC or MBB?
In the year to Sep 12, 2026, with distributions reinvested, BINC returned +2.0% and MBB returned −0.1%, so BINC returned more. One year is one year; the longer windows are in the table.

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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.

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

A comparison is not a recommendation. Standards and sources