Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IWB vs XLK: how they differ
IWB and XLK hold 34% of their weight in the same names, and XLK returned more over the year.
iShares Russell 1000 ETF and State Street(R) Technology Select Sector SPDR(R) ETF.
What they hold in common
By the books each fund has filed, IWB and XLK hold 34% of their money in the same securities at the same weight.
| Holding | IWB | XLK |
|---|---|---|
| NVIDIA CORPORATION | 6.73% | 14.66% |
| APPLE INC. | 6.03% | 12.86% |
| MICROSOFT CORPORATION | 4.00% | 8.38% |
| BROADCOM INC. | 2.54% | 5.41% |
| MICRON TECHNOLOGY, INC. | 1.88% | 5.42% |
| ADVANCED MICRO DEVICES, INC. | 1.36% | 5.28% |
| INTEL CORPORATION | 0.88% | 3.68% |
| APPLIED MATERIALS, INC. | 0.83% | 3.20% |
| LAM RESEARCH CORPORATION | 0.78% | 3.02% |
| CISCO SYSTEMS, INC. | 0.67% | 2.59% |
| KLA CORPORATION | 0.57% | 2.20% |
| SANDISK CORPORATION | 0.48% | 1.88% |
| Only in IWB | Only in XLK |
|---|---|
| AMAZON.COM, INC. 3.33% | Seagate Technology Holdings PLC 1.21% |
| ALPHABET INC. 3.00% | Accenture PLC 0.43% |
| ALPHABET INC. 2.42% | NXP Semiconductors NV 0.40% |
| META PLATFORMS, INC. 1.79% | Flex Ltd 0.33% |
| TESLA, INC. 1.77% | TE Connectivity PLC 0.33% |
| ELI LILLY AND COMPANY 1.38% | |
| BERKSHIRE HATHAWAY INC. 1.34% | |
| JPMORGAN CHASE & CO. 1.26% |
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 | XLK State Street(R) Technology Select Sector SPDR(R) ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | State Street |
| What it is | Russell 1000 | Technology |
| Total return, 1 year | +16.7% | +39.2% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.8 pts | +21.7 pts |
| Expense ratio | 0.15% | 0.08% |
| Already in the S&P 500 | 91.9% | 100.0% |
| Holdings | 1024 | 74 |
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%.
XLK in plain words
XLK is an index equity fund tracking the Technology. Over the year to Sep 11, 2026 it returned +39.2% 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 74 positions, with the top ten at 64.5%. It sat 5.2% below its high of Jun 2, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IWB or XLK?
- In the year to Sep 12, 2026, with distributions reinvested, IWB returned +16.7% and XLK returned +39.2%, so XLK returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWB or XLK?
- IWB charges 0.15% a year and XLK charges 0.08%, so XLK is cheaper. Fees come from each fund's prospectus.
- How much do IWB and XLK overlap with the S&P 500?
- By their latest filed holdings, 92% of IWB and 100% of XLK by weight is stocks the S&P 500 already holds. Between the two funds, 34% 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 XLK, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWB-XLK Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources