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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

IWB vs SPSB: how they differ

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

iShares Russell 1000 ETF and State Street(R) SPDR(R) Portfolio Short Term Corporate Bond ETF.

What they hold in common

By the books each fund has filed, IWB and SPSB 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 IWBOnly in SPSB
NVIDIA CORPORATION 6.73%SALESFORCE INC 0.59%
APPLE INC. 6.03%AERCAP IRELAND CAP/GLOBA 0.46%
MICROSOFT CORPORATION 4.00%BANK OF AMERICA CORP 0.44%
AMAZON.COM, INC. 3.33%CITIGROUP INC 0.44%
ALPHABET INC. 3.00%MORGAN STANLEY 0.40%
BROADCOM INC. 2.54%JPMORGAN CHASE & CO 0.39%
ALPHABET INC. 2.42%PFIZER INVESTMENT ENTER 0.39%
MICRON TECHNOLOGY, INC. 1.88%SPRINT CAPITAL CORP 0.39%

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.

IWB and SPSB on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
IWB
iShares Russell 1000 ETF
SPSB
State Street(R) SPDR(R) Portfolio Short Term Corporate Bond ETF
Where it sitsCore index fundCore index fund
IssueriSharesState Street
What it isRussell 1000SPDR Portfolio Short Term Corporate Bond
Total return, 1 year+16.7%+2.5%
S&P 500 over the same days+17.5%+17.5%
Gap to the S&P 500−0.8 pts−15.1 pts
Expense ratio0.15%0.04%
Holdings10241599

IWB in plain words

IWB is an index equity fund tracking the Russell 1000. Over the year to Sep 11, 2026 it returned +16.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings filed for Jun 30, 2026, 92% of the fund by weight is stocks the S&P 500 also holds, across 1024 positions, with the top ten at 33.5%.

SPSB in plain words

SPSB is a bond fund tracking the SPDR Portfolio Short Term Corporate Bond. Over the year to Sep 11, 2026 it returned +2.5% 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.

Questions people ask

Which returned more over the last year, IWB or SPSB?
In the year to Sep 12, 2026, with distributions reinvested, IWB returned +16.7% and SPSB returned +2.5%, so IWB returned more. One year is one year; the longer windows are in the table.
Which is cheaper, IWB or SPSB?
IWB charges 0.15% a year and SPSB charges 0.04%, so SPSB 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.

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

A comparison is not a recommendation. Standards and sources