Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IWB vs VTWO: how they differ
IWB and VTWO hold 1% of their weight in the same names, and VTWO returned more over the year.
iShares Russell 1000 ETF and Vanguard Russell 2000 Index Fund.
What they hold in common
By the books each fund has filed, IWB and VTWO hold 1% of their money in the same securities at the same weight.
| Holding | IWB | VTWO |
|---|---|---|
| BLOOM ENERGY CORPORATION | 0.12% | 1.83% |
| Credo Technology Group Holding Ltd | 0.07% | 1.12% |
| STERLING INFRASTRUCTURE, INC. | 0.04% | 0.76% |
| FABRINET | 0.03% | 0.69% |
| GUARDANT HEALTH, INC. | 0.03% | 0.47% |
| IONQ Inc | 0.03% | 0.63% |
| TTM TECHNOLOGIES, INC. | 0.03% | 0.52% |
| NEXTPOWER INC. | 0.03% | 0.67% |
| COEUR MINING, INC. | 0.02% | 0.58% |
| SITIME CORPORATION | 0.02% | 0.47% |
| DYCOM INDUSTRIES, INC. | 0.02% | 0.44% |
| SEMTECH CORPORATION | 0.02% | 0.42% |
| Only in IWB | Only in VTWO |
|---|---|
| NVIDIA CORPORATION 6.73% | Hut 8 Corp 0.36% |
| APPLE INC. 6.03% | D-Wave Quantum Inc 0.32% |
| MICROSOFT CORPORATION 4.00% | Lumen Technologies Inc 0.31% |
| AMAZON.COM, INC. 3.33% | Moog Inc 0.30% |
| ALPHABET INC. 3.00% | Viasat Inc 0.29% |
| BROADCOM INC. 2.54% | Cytokinetics Inc 0.29% |
| ALPHABET INC. 2.42% | UMB Financial Corp 0.28% |
| MICRON TECHNOLOGY, INC. 1.88% | Riot Platforms Inc 0.28% |
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 and May 31, 2026.
| IWB iShares Russell 1000 ETF | VTWO Vanguard Russell 2000 Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Russell 1000 | Russell 2000 |
| Total return, 1 year | +16.7% | +21.4% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −0.8 pts | +3.9 pts |
| Expense ratio | 0.15% | 0.07% |
| Already in the S&P 500 | 91.9% | 0.5% |
| Holdings | 1024 | 1951 |
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%.
VTWO in plain words
VTWO is an index equity fund tracking the Russell 2000. Over the year to Sep 11, 2026 it returned +21.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for May 31, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 1951 positions, with the top ten at 7.8%. It sat 5.3% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IWB or VTWO?
- In the year to Sep 12, 2026, with distributions reinvested, IWB returned +16.7% and VTWO returned +21.4%, so VTWO returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWB or VTWO?
- IWB charges 0.15% a year and VTWO charges 0.07%, so VTWO is cheaper. Fees come from each fund's prospectus.
- How much do IWB and VTWO overlap with the S&P 500?
- By their latest filed holdings, 92% of IWB and 0% of VTWO by weight is stocks the S&P 500 already holds. Between the two funds, 1% of their books are the same securities at the same weight.
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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 VTWO, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWB-VTWO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources