Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IWB vs XLU: how they differ
IWB and XLU hold 2% of their weight in the same names, and IWB returned more over the year.
iShares Russell 1000 ETF and State Street(R) Utilities Select Sector SPDR(R) ETF.
What they hold in common
By the books each fund has filed, IWB and XLU hold 2% of their money in the same securities at the same weight.
| Holding | IWB | XLU |
|---|---|---|
| NEXTERA ENERGY, INC. | 0.27% | 12.93% |
| THE SOUTHERN COMPANY | 0.16% | 7.62% |
| DUKE ENERGY CORPORATION | 0.14% | 6.97% |
| CONSTELLATION ENERGY CORPORATION. | 0.12% | 5.61% |
| AMERICAN ELECTRIC POWER COMPANY, INC. | 0.11% | 5.26% |
| Dominion Energy, Inc. | 0.09% | 4.24% |
| SEMPRA | 0.09% | 4.28% |
| VISTRA CORP. | 0.08% | 3.55% |
| ENTERGY CORPORATION | 0.08% | 3.71% |
| Xcel Energy Inc. | 0.07% | 3.54% |
| EXELON CORPORATION | 0.07% | 3.37% |
| CONSOLIDATED EDISON, INC. | 0.06% | 2.88% |
| Only in IWB | Only in XLU |
|---|---|
| NVIDIA CORPORATION 6.73% | |
| APPLE INC. 6.03% | |
| MICROSOFT CORPORATION 4.00% | |
| AMAZON.COM, INC. 3.33% | |
| ALPHABET INC. 3.00% | |
| BROADCOM INC. 2.54% | |
| ALPHABET INC. 2.42% | |
| MICRON TECHNOLOGY, INC. 1.88% |
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 iShares Russell 1000 ETF | XLU State Street(R) Utilities Select Sector SPDR(R) ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | State Street |
| What it is | Russell 1000 | Utilities |
| Total return, 1 year | +16.7% | +2.4% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.8 pts | −15.1 pts |
| Expense ratio | 0.15% | 0.08% |
| Already in the S&P 500 | 91.9% | 100.0% |
| Holdings | 1024 | 31 |
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%.
XLU in plain words
XLU is an index equity fund tracking the Utilities. Over the year to Sep 11, 2026 it returned +2.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.08% a year. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 31 positions, with the top ten at 57.7%. It sat 10.0% below its high of Feb 27, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IWB or XLU?
- In the year to Sep 12, 2026, with distributions reinvested, IWB returned +16.7% and XLU returned +2.4%, so IWB returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWB or XLU?
- IWB charges 0.15% a year and XLU charges 0.08%, so XLU is cheaper. Fees come from each fund's prospectus.
- How much do IWB and XLU overlap with the S&P 500?
- By their latest filed holdings, 92% of IWB and 100% of XLU by weight is stocks the S&P 500 already holds. Between the two funds, 2% of their books are the same securities at the same weight.
Other comparisons
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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.
Cite this page. ETFIQ, IWB against XLU, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWB-XLU Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources