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

In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and PFF −4.2%.

Which is cheaper, MBB or PFF?

MBB is cheaper, by 0.41 percentage points a year. That is about $41 on $10,000 held for a year. Fees come from each fund's prospectus.

Data as of Oct 28, 2026.

Across categories

MBB vs PFF: Differences, Returns & Fees

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Over the year to Oct 28, 2026, MBB returned −0.8% to PFF's −4.2%, and MBB charges 0.04% to PFF's 0.45%.

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Net assets: $35.5bn on Oct 28, 2026 for iShares MBS ETF, and $11.8bn on Oct 27, 2026 for iShares Preferred and Income Securities ETF.

MBB on its own →PFF on its own →

At a glance

−0.8%

MBB total return, 1 year

−4.2%

PFF total return, 1 year

0.04%

MBB expense ratio

0.45%

PFF expense ratio

Pair scorecard

MBB costs 0.41 points a year less; their one-year returns differ by 3.4 points; MBB is 3.0 times larger.

MBB vs PFF: Differences, Returns & Fees
Measure	MBB	PFF
Return
Measure	MBB	PFF
Total return, 1 year	−0.8%	−4.2%
Drawdown
Measure	MBB	PFF
Below its high		7.1%, high on May 8, 2026
Benchmark
Measure	MBB	PFF
What it tracks	Bloomberg U.S. MBS Index	ICE Exchange-Listed Preferred & Hybrid Securities Index
Cost and size
Measure	MBB	PFF
Expense ratio	0.04%	0.45%
Net assets, as of Oct 26, 2026	$35.6bn	$11.8bn
Holdings
Measure	MBB	PFF
Holdings in common	0%
In the S&P 500, by weight		0%
Top ten holdings, share of the fund		22.7%

Holdings in common uses holdings dated Jun 30, 2026 and Aug 31, 2026. Method

What they share

By the books each fund has filed, MBB and PFF hold 0% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Aug 31, 2026.

50%

0 half 100%

half

0% in common

Positions both hold · largest shared weight first MBB PFF

Only in one fund ↓

Only in MBB

Ginnie Mae, due Sep 1, 2056 1.05%

Freddie Mac Pool, due May 1, 2051 0.98%

Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 0.85%

Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 0.70%

Ginnie Mae, due Sep 1, 2056 0.53%

Ginnie Mae II Pool, due Nov 20, 2054 0.51%

Ginnie Mae II Pool, due Oct 20, 2051 0.51%

Ginnie Mae II Pool, due Dec 20, 2051 0.50%

Only in PFF

BOEING COMPANY (THE) 6% SER A DEP SHS REPSTG 1/20TH INT MANDATORY CONV PFD 3.93%

STRATEGY INC VARIABLE RATE SERIES A PERPETUAL STRETCH PREFERRED STOCK 2.95%

WELLS FARGO & COMPANY 7.5% NON-CUMULATIVE PERPETUAL CONVERTIBLE CLASS A PREFERRED STOCK, SERIES L 2.33%

ORACLE CORP DEPOSITARY SHARES EACH REPRESENTING A 1/2,000TH INTEREST IN A SHARE OF 6.50% SERIES D MANDATORY CONVERTIBLE PREFERRED STOCK 2.28%

HEWLETT PACKARD ENTERPRISE COMPANY 7.625% SERIES C MANDATORY CONVERTIBLE PREFERRED STOCK 1.76%

BANK OF AMERICA CORP 7.25% NON-CUMULATIVE PERPETUAL CONVERTIBLE PREFERRED STOCK SERIES L 1.45%

CITIGROUP CAPITAL XIII FIXED/FLOAT TRUST PREFERRED SECURITIES 1.31%

ALBEMARLE CORP DEPOSITARY SHARES EACH REPRESENTING A 1/20TH INTEREST IN A SHARE OF 7.25% SERIES A MANDATORY CONVERTIBLE PREFERRED STOCK 1.29%

Check overlap with more funds →

Side by side

MBB iShares MBS ETF PFF iShares Preferred and Income Securities ETF

Where it sits Bond ETF Bond ETF

Issuer iShares iShares

What it is Tracks an index of mortgage-backed securities Tracks an index of Preferred and Income Securities

Total return, 1 year −0.8% −4.2%

Its benchmark over the same days −1.1% (SPMB) +13.6% (MLRG)

Gap to its benchmark +0.3 pts vs SPMB −17.8 pts vs MLRG

Expense ratio 0.04% 0.45%

Holdings 10813 453

Net assets, MBB as of Oct 28, 2026 and PFF as of Oct 27, 2026 $35.5bn $11.8bn

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

Alert

About each fund

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.

PFF

PFF tracks an index of Preferred and Income Securities. Over the year to Oct 28, 2026 it returned −4.2% with distributions reinvested, against +13.6% for its benchmark, the MSCI USA Index. The prospectus expense ratio is 0.45% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 453 positions, with the top ten at 22.7%. It sat 7.1% below its high of May 8, 2026 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, MBB or PFF?: In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and PFF −4.2%.
Which is cheaper, MBB or PFF?: MBB is cheaper, by 0.41 percentage points a year. That is about $41 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

MBB vs VGLT MBB vs TIP MBB vs MINT MBB vs SPSB PFF vs PFFA PFF vs PFXF PFF vs PFFD PFF vs PREF

Where to next

MBB on its own →PFF on its own →Hold both: look the portfolio through →Rankings →MBB dividend history →MBB holdings →PFF dividend history →PFF holdings →Standards and sources →

Sources and dates

MBB and PFF filings on SEC EDGAR ↗

MBB prospectus with the expense ratio (SEC) ↗

iShares page for MBB ↗

PFF prospectus with the expense ratio (SEC) ↗

iShares page for PFF ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, MBB against PFF, data as of Oct 28, 2026. https://etfiq.com/compare/any/mbb-vs-pff

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.