IWV vs MGC: Differences, Returns & Fees
IWV and MGC hold 75% of their weight in the same names, and MGC returned +18.0% over the year. Net assets: $20.6bn on Oct 9, 2026 for iShares Russell 3000 ETF, and $10.3bn on Sep 30, 2026 for Vanguard Morningstar Mega Cap ETF.
MGC costs 0.15 points a year less; their one-year returns differ by 1.3 points; IWV is 2.0 times larger.
| IWV | MGC | |
|---|---|---|
| Expense ratio | 0.20% | 0.05% |
| Net assets, as of Sep 30, 2026 | $20.3bn | $10.3bn |
| Total return, 1 year | +16.7% | +18.0% |
| What it tracks | Russell 3000 Index | CRSP US Mega Cap Index |
| Holdings in common | 75% | |
| Top ten holdings, share of the fund | 34.7% | 45.4% |
Holdings in common uses holdings dated Aug 31, 2026 and Oct 9, 2026.
What they hold in common
By the books each fund has filed, IWV and MGC hold 75% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Aug 31, 2026 and Oct 9, 2026.
half
75% in common
On the same fields
IWV and MGC on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.
About IWV
IWV tracks an index. Over the year to Oct 9, 2026 it returned +16.7% with distributions reinvested, against +16.8% for its benchmark, the Russell 3000 Index. The prospectus expense ratio is 0.20% a year. By its holdings published by its issuer for Oct 9, 2026, 88% of the fund by weight is stocks the S&P 500 also holds, across 2,600 positions, with the top ten at 34.7%.
About MGC
MGC tracks an index. Over the year to Oct 9, 2026 it returned +18.0% with distributions reinvested. The prospectus expense ratio is 0.05% a year. By its holdings published by its issuer as of Aug 31, 2026, 99% of the fund by weight is stocks the S&P 500 also holds, across 174 positions, with the top ten at 45.4%.
Questions people ask
- Which returned more over the last year, IWV or MGC?
- In the year to Oct 9, 2026, with distributions reinvested, IWV returned +16.7% and MGC +18.0%.
- Which is cheaper, IWV or MGC?
- MGC is cheaper, by 0.15 percentage points a year. That is about $15 on $10,000 held for a year. Fees come from each fund's prospectus.
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
Cite this pageCitation, APA and Markdown
ETFIQ, IWV against MGC, data as of Oct 9, 2026. https://etfiq.com/compare/any/iwv-vs-mgc
ETFIQ. (Oct 9, 2026). IWV against MGC. Retrieved from https://etfiq.com/compare/any/iwv-vs-mgc
[IWV against MGC (ETFIQ, Oct 9, 2026)](https://etfiq.com/compare/any/iwv-vs-mgc)
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