Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IYW vs VBK: how they differ
IYW and VBK hold 3% of their weight in the same names, and IYW returned more over the year.
iShares U.S. Technology ETF and Vanguard Small-Cap Growth Index Fund.
What they hold in common
By the books each fund has filed, IYW and VBK hold 3% of their money in the same securities at the same weight.
| Holding | IYW | VBK |
|---|---|---|
| FLEX LTD. | 0.21% | 0.42% |
| Astera Labs, Inc | 0.15% | 1.05% |
| Everpure, Inc | 0.14% | 0.70% |
| ENTEGRIS, INC. | 0.13% | 0.77% |
| TWILIO INC. | 0.13% | 0.88% |
| MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC | 0.12% | 0.74% |
| LATTICE SEMICONDUCTOR CORPORATION | 0.10% | 0.59% |
| PTC INC. | 0.10% | 0.37% |
| TYLER TECHNOLOGIES, INC. | 0.09% | 0.35% |
| ONTO INNOVATION INC. | 0.09% | 0.53% |
| TOAST, INC. | 0.08% | 0.38% |
| OKTA, INC. | 0.08% | 0.65% |
| Only in IYW | Only in VBK |
|---|---|
| NVIDIA CORPORATION 16.25% | Credo Technology Group Holding Ltd 1.27% |
| APPLE INC. 13.65% | REVOLUTION Medicines Inc 1.07% |
| ALPHABET INC. 7.84% | Natera Inc 1.04% |
| ALPHABET INC. 6.34% | Casey's General Stores Inc 0.83% |
| MICROSOFT CORPORATION 3.99% | Carpenter Technology Corp 0.82% |
| BROADCOM INC. 3.78% | Curtiss-Wright Corp 0.79% |
| ADVANCED MICRO DEVICES, INC. 3.50% | FTAI Aviation Ltd 0.78% |
| MICRON TECHNOLOGY, INC. 2.98% | nVent Electric PLC 0.77% |
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.
| IYW iShares U.S. Technology ETF | VBK Vanguard Small-Cap Growth Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | U.S. Technology | Small-Cap Growth |
| Total return, 1 year | +34.9% | +13.8% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +17.4 pts | −3.7 pts |
| Expense ratio | 0.37% | 0.05% |
| Already in the S&P 500 | 95.5% | 10.2% |
| Holdings | 139 | 545 |
IYW in plain words
IYW is an index equity fund tracking the U.S. Technology. Over the year to Sep 11, 2026 it returned +34.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.37% a year. By its holdings filed for Apr 30, 2026, 96% of the fund by weight is stocks the S&P 500 also holds, across 139 positions, with the top ten at 63.7%.
VBK in plain words
VBK is an index equity fund tracking the Small-Cap Growth. Over the year to Sep 11, 2026 it returned +13.8% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.05% a year. By its holdings filed for Jun 30, 2026, 10% of the fund by weight is stocks the S&P 500 also holds, across 545 positions, with the top ten at 9.3%. It sat 7.0% below its high of Aug 17, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IYW or VBK?
- In the year to Sep 12, 2026, with distributions reinvested, IYW returned +34.9% and VBK returned +13.8%, so IYW returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IYW or VBK?
- IYW charges 0.37% a year and VBK charges 0.05%, so VBK is cheaper. Fees come from each fund's prospectus.
- How much do IYW and VBK overlap with the S&P 500?
- By their latest filed holdings, 96% of IYW and 10% of VBK by weight is stocks the S&P 500 already holds. Between the two funds, 3% of their books are the same securities at the same weight.
Other comparisons
Where to next
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, IYW against VBK, data as of Sep 12, 2026. https://etfiq.com/compare/any/IYW-VBK Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources