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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

IUSB vs PFF: how they differ

IUSB and PFF hold 0% of their weight in the same names.

iShares Core Universal USD Bond ETF and iShares Preferred and Income Securities ETF.

What they hold in common

By the books each fund has filed, IUSB 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 IUSBOnly in PFF
United States of America 0.38%BOEING COMPANY (THE) 3.99%
United States of America 0.37%STRATEGY INC 2.99%
United States of America 0.37%WELLS FARGO & COMPANY 2.37%
United States of America 0.37%ORACLE CORP 2.31%
United States of America 0.36%HEWLETT PACKARD ENTERPRISE COMPANY 1.79%
United States of America 0.36%BANK OF AMERICA CORP 1.47%
United States of America 0.36%CITIGROUP CAPITAL XIII 1.33%
United States of America 0.35%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 Apr 30, 2026 and Jun 30, 2026.

IUSB and PFF on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
IUSB
iShares Core Universal USD Bond ETF
PFF
iShares Preferred and Income Securities ETF
Where it sitsCore index fundCore index fund
IssueriSharesiShares
What it isCore Universal USD BondPreferred and Income Securities
Total return, 1 year−0.3%−0.8%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−17.8 pts−18.3 pts
Expense ratio0.06%0.45%
Holdings17819455

IUSB in plain words

IUSB is a bond fund tracking the Core Universal USD Bond. Over the year to Sep 11, 2026 it returned −0.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.06% a year.

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, IUSB or PFF?
In the year to Sep 12, 2026, with distributions reinvested, IUSB returned −0.3% and PFF returned −0.8%, so IUSB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IUSB or PFF?
IUSB charges 0.06% a year and PFF charges 0.45%, so IUSB 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.

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

A comparison is not a recommendation. Standards and sources