Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IYR vs VO: how they differ
IYR and VO hold 5% of their weight in the same names, and VO returned more over the year.
iShares U.S. Real Estate ETF and Vanguard Mid-Cap Index Fund.
What they hold in common
By the books each fund has filed, IYR and VO hold 5% of their money in the same securities at the same weight.
| Holding | IYR | VO |
|---|---|---|
| SIMON PROPERTY GROUP, INC. | 4.79% | 0.67% |
| DIGITAL REALTY TRUST, INC. | 4.41% | 0.61% |
| REALTY INCOME CORPORATION | 4.29% | 0.56% |
| PUBLIC STORAGE. | 3.74% | 0.49% |
| VENTAS, INC. | 3.21% | 0.42% |
| CBRE GROUP, INC. | 2.93% | 0.38% |
| IRON MOUNTAIN INCORPORATED | 2.79% | 0.35% |
| CROWN CASTLE INC. | 2.46% | 0.32% |
| EXTRA SPACE STORAGE INC. | 2.28% | 0.30% |
| VICI PROPERTIES INC. | 2.16% | 0.26% |
| AVALONBAY COMMUNITIES, INC. | 1.95% | 0.26% |
| EQUITY RESIDENTIAL | 1.72% | 0.25% |
| Only in IYR | Only in VO |
|---|---|
| WELLTOWER INC. 10.88% | Vertiv Holdings Co 1.23% |
| PROLOGIS, INC. 8.77% | Western Digital Corp 1.07% |
| EQUINIX, INC. 4.58% | Seagate Technology Holdings PLC 1.05% |
| AMERICAN TOWER CORPORATION 3.88% | Quanta Services Inc 1.05% |
| ESSEX PROPERTY TRUST, INC. 1.39% | Howmet Aerospace Inc 1.04% |
| WEYERHAEUSER COMPANY 1.28% | Cummins Inc 0.95% |
| KIMCO REALTY CORPORATION. 1.27% | Datadog Inc 0.84% |
| INVITATION HOMES INC. 1.23% | Bloom Energy Corp 0.79% |
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.
| IYR iShares U.S. Real Estate ETF | VO Vanguard Mid-Cap Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | U.S. Real Estate | Mid-Cap |
| Total return, 1 year | +4.7% | +12.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −12.8 pts | −5.5 pts |
| Expense ratio | 0.37% | 0.03% |
| Already in the S&P 500 | 80.4% | 91.4% |
| Holdings | 61 | 282 |
IYR in plain words
IYR is an index equity fund tracking the U.S. Real Estate. Over the year to Sep 11, 2026 it returned +4.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.37% a year. By its holdings filed for Jun 30, 2026, 80% of the fund by weight is stocks the S&P 500 also holds, across 61 positions, with the top ten at 51.5%. It sat 6.1% below its high of Jul 28, 2026 on Sep 11, 2026.
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, IYR or VO?
- In the year to Sep 12, 2026, with distributions reinvested, IYR returned +4.7% and VO returned +12.0%, so VO returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IYR or VO?
- IYR charges 0.37% a year and VO charges 0.03%, so VO is cheaper. Fees come from each fund's prospectus.
- How much do IYR and VO overlap with the S&P 500?
- By their latest filed holdings, 80% of IYR and 91% of VO by weight is stocks the S&P 500 already holds. Between the two funds, 5% 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, IYR against VO, data as of Sep 12, 2026. https://etfiq.com/compare/any/IYR-VO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources