Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IWD vs VO: how they differ
IWD and VO hold 22% of their weight in the same names, and IWD returned more over the year.
iShares Russell 1000 Value ETF and Vanguard Mid-Cap Index Fund.
What they hold in common
By the books each fund has filed, IWD and VO hold 22% of their money in the same securities at the same weight.
| Holding | IWD | VO |
|---|---|---|
| NEWMONT CORPORATION | 0.28% | 0.48% |
| THE WILLIAMS COMPANIES, INC. | 0.25% | 0.44% |
| JOHNSON CONTROLS INTERNATIONAL PUBLIC LI | 0.23% | 0.43% |
| AMERICAN ELECTRIC POWER COMPANY, INC. | 0.21% | 0.36% |
| CONSTELLATION ENERGY CORPORATION. | 0.21% | 0.78% |
| CRH PUBLIC LIMITED COMPANY | 0.20% | 0.69% |
| NORFOLK SOUTHERN CORPORATION | 0.20% | 0.34% |
| The Travelers Companies, Inc. | 0.20% | 0.34% |
| GENERAL MOTORS COMPANY | 0.20% | 0.67% |
| SLB N.V. | 0.20% | 0.67% |
| AON PUBLIC LIMITED COMPANY | 0.19% | 0.33% |
| FEDEX CORPORATION | 0.19% | 0.33% |
| Only in IWD | Only in VO |
|---|---|
| AMAZON.COM, INC. 5.95% | Vertiv Holdings Co 1.23% |
| APPLE INC. 5.38% | Western Digital Corp 1.07% |
| MICROSOFT CORPORATION 3.89% | Seagate Technology Holdings PLC 1.05% |
| BERKSHIRE HATHAWAY INC. 2.62% | Quanta Services Inc 1.05% |
| JPMORGAN CHASE & CO. 2.46% | Howmet Aerospace Inc 1.04% |
| INTEL CORPORATION 1.72% | Datadog Inc 0.84% |
| JOHNSON & JOHNSON 1.72% | Bloom Energy Corp 0.79% |
| EXXON MOBIL CORPORATION 1.60% | Cloudflare Inc 0.76% |
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.
| IWD iShares Russell 1000 Value ETF | VO Vanguard Mid-Cap Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Russell 1000 value | Mid-Cap |
| Total return, 1 year | +27.4% | +12.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +9.9 pts | −5.5 pts |
| Expense ratio | 0.18% | 0.03% |
| Already in the S&P 500 | 90.2% | 91.4% |
| Holdings | 870 | 282 |
IWD in plain words
IWD is an index equity fund tracking the Russell 1000 value. Over the year to Sep 11, 2026 it returned +27.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.18% a year. By its holdings filed for Jun 30, 2026, 90% of the fund by weight is stocks the S&P 500 also holds, across 870 positions, with the top ten at 27.9%.
VO in plain words
VO is an index equity fund tracking the Mid-Cap. Over the year to Sep 11, 2026 it returned +12.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 91% of the fund by weight is stocks the S&P 500 also holds, across 282 positions, with the top ten at 9.6%. It sat 4.1% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IWD or VO?
- In the year to Sep 12, 2026, with distributions reinvested, IWD returned +27.4% and VO returned +12.0%, so IWD returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IWD or VO?
- IWD charges 0.18% a year and VO charges 0.03%, so VO is cheaper. Fees come from each fund's prospectus.
- How much do IWD and VO overlap with the S&P 500?
- By their latest filed holdings, 90% of IWD and 91% of VO by weight is stocks the S&P 500 already holds. Between the two funds, 22% 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, IWD against VO, data as of Sep 12, 2026. https://etfiq.com/compare/any/IWD-VO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources