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

ETFIQetfiq.com · independent ETF data

DYNF vs MBB: how they differ

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

iShares U.S. Equity Factor Rotation Active ETF and iShares MBS ETF.

What they hold in common

By the books each fund has filed, DYNF 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 DYNFOnly in MBB
NVIDIA 8.13%BLACKROCK CASH CL INST SL AGENCY 7.26%
APPLE 7.62%GNMA2 SF 30YR 0.09%
MICROSOFT 4.75%GNMA II 30YR SF - JUMBO-CONFORMING 0.08%
AMAZON.COM INC 4.09%GNMA2 SINGLE FAMILY 30YR 0.04%
JPMORGAN CHASE & CO 3.46%GNMA II 30YR 0.03%
EXXONMOBIL HOLDINGS CORP 2.73%GNMA2 30YR TBA(REG C) 0.03%
BROADCOM INC 2.59%UMBS 15YR TBA(REG B) 0.03%
META PLATFORMS CLASS A 2.42%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.

DYNF and MBB on the fields both publish, as of Sep 13, 2026. Source: ETFIQ.
DYNF
iShares U.S. Equity Factor Rotation Active ETF
MBB
iShares MBS ETF
Where it sitsCore index fundCore index fund
IssueriSharesiShares
What it isU.S. Equity Factor Rotation ActiveMbs
Total return, 1 year+20.8%−0.1%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500+3.3 pts−17.6 pts
Expense ratio0.26%0.04%
Holdings2342599

DYNF in plain words

DYNF is an index equity fund tracking the U.S. Equity Factor Rotation Active. Over the year to Sep 11, 2026 it returned +20.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.26% a year. By its holdings filed for Sep 10, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 234 positions, with the top ten at 40.3%.

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, DYNF or MBB?
In the year to Sep 13, 2026, with distributions reinvested, DYNF returned +20.8% and MBB returned −0.1%, so DYNF returned more. One year is one year; the longer windows are in the table.
Which is cheaper, DYNF or MBB?
DYNF charges 0.26% 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.

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

A comparison is not a recommendation. Standards and sources