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

In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and PFF returned −0.8%, so MBB returned more. One year is one year; the longer windows are in the table.

Which is cheaper, MBB or PFF?

MBB charges 0.04% a year and PFF charges 0.45%, so MBB is cheaper. Fees come from each fund's prospectus.

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

ETFIQetfiq.com · independent ETF data

MBB vs PFF: how they differ

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

iShares MBS ETF and iShares Preferred and Income Securities ETF.

What they hold in common

By the books each fund has filed, MBB and PFF 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 MBB	Only in PFF
Freddie Mac 1.07%	BOEING COMPANY (THE) 3.99%
Government National Mortgage Association 0.97%	STRATEGY INC 2.99%
UMBS, TBA 0.85%	WELLS FARGO & COMPANY 2.37%
Government National Mortgage Association 0.69%	ORACLE CORP 2.31%
UMBS, TBA 0.66%	HEWLETT PACKARD ENTERPRISE COMPANY 1.79%
Government National Mortgage Association 0.56%	BANK OF AMERICA CORP 1.47%
Government National Mortgage Association 0.55%	CITIGROUP CAPITAL XIII 1.33%
Government National Mortgage Association 0.54%	ALBEMARLE CORP 1.31%

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.

MBB and PFF on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	MBB iShares MBS ETF	PFF iShares Preferred and Income Securities ETF
Where it sits	Core index fund	Core index fund
Issuer	iShares	iShares
What it is	Mbs	Preferred and Income Securities
Total return, 1 year	−0.1%	−0.8%
S&P 500 over the same days	+17.5%	+17.5%
Gap to the S&P 500	−17.6 pts	−18.3 pts
Expense ratio	0.04%	0.45%
Holdings	11144	455

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.

PFF in plain words

PFF is an index equity fund tracking the Preferred and Income Securities. Over the year to Sep 11, 2026 it returned −0.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.45% a year. By its holdings filed for Jun 30, 2026, 22% of the fund by weight is stocks the S&P 500 also holds, across 455 positions, with the top ten at 19.9%. It sat 3.2% below its high of May 8, 2026 on Sep 11, 2026.

Questions people ask

Which returned more over the last year, MBB or PFF?: In the year to Sep 12, 2026, with distributions reinvested, MBB returned −0.1% and PFF returned −0.8%, so MBB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, MBB or PFF?: MBB charges 0.04% a year and PFF charges 0.45%, 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.

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

A comparison is not a recommendation. Standards and sources