Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IYR vs MGK: how they differ
IYR and MGK hold 1% of their weight in the same names, and MGK returned more over the year.
iShares U.S. Real Estate ETF and Vanguard Mega Cap Growth Index Fund.
What they hold in common
By the books each fund has filed, IYR and MGK hold 1% of their money in the same securities at the same weight.
| Holding | IYR | MGK |
|---|---|---|
| WELLTOWER INC. | 10.88% | 0.71% |
| EQUINIX, INC. | 4.58% | 0.50% |
| Only in IYR | Only in MGK |
|---|---|
| PROLOGIS, INC. 8.77% | NVIDIA Corp 13.29% |
| SIMON PROPERTY GROUP, INC. 4.79% | Apple Inc 12.19% |
| DIGITAL REALTY TRUST, INC. 4.41% | Microsoft Corp 7.52% |
| REALTY INCOME CORPORATION 4.29% | Alphabet Inc 5.93% |
| AMERICAN TOWER CORPORATION 3.88% | Alphabet Inc 4.67% |
| PUBLIC STORAGE. 3.74% | Amazon.com Inc 4.47% |
| VENTAS, INC. 3.21% | Broadcom Inc 4.28% |
| CBRE GROUP, INC. 2.93% | Meta Platforms Inc 4.08% |
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 | MGK Vanguard Mega Cap Growth Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | U.S. Real Estate | Mega Cap Growth |
| Total return, 1 year | +4.7% | +14.9% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −12.8 pts | −2.6 pts |
| Expense ratio | 0.37% | 0.07% |
| Already in the S&P 500 | 80.4% | 99.2% |
| Holdings | 61 | 56 |
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.
MGK in plain words
MGK is an index equity fund tracking the Mega Cap Growth. Over the year to Sep 11, 2026 it returned +14.9% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for Jun 30, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 56 positions, with the top ten at 63.8%.
Questions people ask
- Which returned more over the last year, IYR or MGK?
- In the year to Sep 12, 2026, with distributions reinvested, IYR returned +4.7% and MGK returned +14.9%, so MGK returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IYR or MGK?
- IYR charges 0.37% a year and MGK charges 0.07%, so MGK is cheaper. Fees come from each fund's prospectus.
- How much do IYR and MGK overlap with the S&P 500?
- By their latest filed holdings, 80% of IYR and 99% of MGK 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, IYR against MGK, data as of Sep 12, 2026. https://etfiq.com/compare/any/IYR-MGK Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources