Data as of Oct 28, 2026.

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DYNF vs MBB: Differences, Returns & Fees

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Over the year to Oct 28, 2026, DYNF returned +14.5% to MBB's −0.8%; 0% of their weight is in the same names.

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Net assets: $42.7bn on Oct 27, 2026 for iShares U.S. Equity Factor Rotation Active ETF, and $35.5bn on Oct 28, 2026 for iShares MBS ETF.

At a glance
+14.5%
DYNF total return, 1 year
−0.8%
MBB total return, 1 year
0.26%
DYNF expense ratio
0.04%
MBB expense ratio

Pair scorecard

MBB costs 0.22 points a year less; their one-year returns differ by 15.3 points; DYNF is 1.2 times larger.

DYNF vs MBB: Differences, Returns & Fees
MeasureDYNFMBB
Return
Total return, 1 year+14.5%−0.8%
Benchmark
What it tracksNo index, actively managedBloomberg U.S. MBS Index
Cost and size
Expense ratio0.26%0.04%
Net assets, as of Oct 26, 2026$42.4bn$35.6bn
Holdings
Holdings in common0%
In the S&P 500, by weight95%
Top ten holdings, share of the fund40.7%

Holdings in common uses holdings dated Oct 27, 2026. Method

What they share

0%

By the books each fund has filed, DYNF and MBB hold 0% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

0 half 100%

half

0% in common

Positions both hold · largest shared weight first DYNF MBB
Only in one fund ↓
Only in DYNF
NVIDIA 8.15%
APPLE 8.14%
MICROSOFT 4.76%
AMAZON.COM INC 4.12%
JPMORGAN CHASE & CO 3.30%
EXXONMOBIL HOLDINGS CORP 2.99%
BROADCOM INC 2.46%
META PLATFORMS CLASS A 2.34%
Only in MBB
BLACKROCK CASH CL INST SL AGENCY 5.45%
FHLMC 30YR UMBS SUPER 1.05%
UMBS 30YR TBA(REG A) 0.60%
GNMA2 30YR 0.59%
GNMA2 30YR 0.54%
FNMA 30YR UMBS 0.53%
GNMA2 30YR 0.53%
GNMA2 30YR 0.52%
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Side by side

DYNF iShares U.S. Equity Factor Rotation Active ETF MBB iShares MBS ETF
Where it sits Stock ETF Bond ETF
What it is Actively managed Tracks an index of mortgage-backed securities
Total return, 1 year +14.5% −0.8%
Its benchmark over the same days +13.3% (PBUS) −1.1% (SPMB)
Gap to its benchmark +1.2 pts vs PBUS +0.3 pts vs SPMB
Expense ratio 0.26% 0.04%
Holdings 262 10813
Net assets, DYNF as of Oct 27, 2026 and MBB as of Oct 28, 2026 $42.7bn $35.5bn

DYNF and MBB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
DYNF

DYNF is actively managed and tracks no index. Over the year to Oct 28, 2026 it returned +14.5% with distributions reinvested, against +13.3% for its benchmark, the MSCI USA Index. The prospectus expense ratio is 0.26% a year. By its holdings published by its issuer for Oct 27, 2026, 95% of the fund by weight is stocks the S&P 500 also holds, across 262 positions, with the top ten at 40.7%.

MBB

MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.

Questions people ask

Which returned more over the last year, DYNF or MBB?
In the year to Oct 28, 2026, with distributions reinvested, DYNF returned +14.5% and MBB −0.8%.
Which is cheaper, DYNF or MBB?
MBB is cheaper, by 0.22 percentage points a year. That is about $22 on $10,000 held for a year. Fees come from each fund's prospectus.
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ETFIQ, DYNF against MBB, data as of Oct 28, 2026. https://etfiq.com/compare/any/dynf-vs-mbb

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