IWF vs MGK vs VOOG vs VUG: holdings overlap, shared companies and scores
As of September 11, 2026, MGK and VUG overlap most of IWF, MGK, VOOG and VUG, at 86.5% by weight, and IWF and MGK least, at 72.7%. iShares Russell 1000 Growth ETF (IWF): Russell 1000 Growth index. Vanguard Morningstar Mega Cap Growth ETF (MGK): U.S. mega-cap growth stocks. Vanguard S&P 500 Growth ETF (VOOG): U.S. growth stocks. Vanguard Morningstar Growth ETF (VUG): U.S. large-cap growth stocks.
Updated September 11, 2026
How much do IWF, MGK, VOOG and VUG overlap?
As of September 11, 2026, of the six published pairs among IWF, MGK, VOOG and VUG, MGK and VUG overlap most at 86.5% by weight, and IWF and MGK least at 72.7%.
IWF holds 369, MGK holds 58, VOOG holds 149 and VUG holds 148 companies.
- MGK and VUG: 86.5% by weight, 58 companies in both.
- VOOG and VUG: 77.7% by weight, 90 companies in both.
- IWF and VUG: 77.1% by weight, 113 companies in both.
- IWF and VOOG: 75.1% by weight, 103 companies in both.
- MGK and VOOG: 73.9% by weight, 49 companies in both.
- IWF and MGK: 72.7% by weight, 47 companies in both.
Computed by ETF Copilot from these funds' holdings rather than quoted from a data provider, and rebuilt nightly.
How does ETF Copilot score IWF, MGK, VOOG and VUG?
As of September 11, 2026, ETF Copilot scores IWF 6.3 out of 10, MGK 5.6 out of 10, VOOG 6.2 out of 10 and VUG 5.6 out of 10.
They differ most on Growth: IWF 6.3, MGK 2.3, VOOG 2.8 and VUG 2.5.
The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.
| Factor | IWF | MGK | VOOG | VUG |
|---|---|---|---|---|
| Growth | 6.3 | 2.3 | 2.8 | 2.5 |
| Valuation | 4.1 | 4.8 | 4.8 | 5.0 |
| Risk | 3.5 | 3.3 | 5.5 | 3.3 |
| Quality | 9.9 | 10.0 | 10.0 | 9.9 |
| Return | 7.4 | 8.3 | 8.4 | 7.8 |
VUG is the cheapest of the 4 at 0.03% a year
As of September 11, 2026, IWF charges 0.18% a year, yields 0.46% and holds $126.0B in assets across 369 positions.
As of September 11, 2026, MGK charges 0.05% a year, yields 0.35% and holds $32.4B in assets across 58 positions.
As of September 11, 2026, VOOG charges 0.07% a year, yields 0.55% and holds $26.1B in assets across 149 positions.
As of September 11, 2026, VUG charges 0.03% a year, yields 0.42% and holds $372.0B in assets across 148 positions.
| Measure | IWF | MGK | VOOG | VUG |
|---|---|---|---|---|
| Expense ratio | 0.18% | 0.05% | 0.07% | 0.03% |
| Dividend yield | 0.46% | 0.35% | 0.55% | 0.42% |
| Assets under management | $126.0B | $32.4B | $26.1B | $372.0B |
| Holdings | 369 | 58 | 149 | 148 |
Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.
Where IWF, MGK, VOOG and VUG trade against their own history
IWF trades at 31.0 times earnings, against its own median of 27.3, and is more expensive than 75% of its own 114 monthly readings since 2017.
MGK trades at 31.0 times earnings, against its own median of 28.2, and is more expensive than 70% of its own 114 monthly readings since 2017.
VOOG trades at 27.7 times earnings, against its own median of 25.7, and is more expensive than 63% of its own 114 monthly readings since 2017.
VUG trades at 31.0 times earnings, against its own median of 28.8, and is more expensive than 67% of its own 114 monthly readings since 2017.
What moved IWF, MGK, VOOG and VUG this week
IWF fell 0.9% in the week to September 11, 2026. The holdings that moved it most were Nvidia (−4.4%), Microsoft (−2.8%) and Eli Lilly (−3.8%); Advanced Micro Devices (+13.1%) pushed the other way.
MGK fell 0.8% in the week to September 11, 2026. The holdings that moved it most were Nvidia (−4.4%), Microsoft (−2.8%) and Eli Lilly (−3.8%); Advanced Micro Devices (+13.1%) pushed the other way.
VOOG fell 1.0% in the week to September 11, 2026. The holdings that moved it most were Nvidia (−4.4%), Microsoft (−2.8%) and Eli Lilly (−3.8%); Advanced Micro Devices (+13.1%) pushed the other way.
VUG fell 1.0% in the week to September 11, 2026. The holdings that moved it most were Nvidia (−4.4%), Microsoft (−2.8%) and Eli Lilly (−3.8%); Advanced Micro Devices (+13.1%) pushed the other way.
What do IWF, MGK, VOOG and VUG each hold?
What's inside IWF: Tech 70%, Magnificent 7 47%.
57% of IWF is its ten largest holdings.
What's inside MGK: Tech 74%, Magnificent 7 60%.
67% of MGK is its ten largest holdings.
What's inside VOOG: Tech 66%, Magnificent 7 50%.
59% of VOOG is its ten largest holdings.
What's inside VUG: Tech 71%, Magnificent 7 57%.
64% of VUG is its ten largest holdings.
Compare with similar funds
Cite this
ETF Copilot, “IWF vs MGK vs VOOG vs VUG holdings overlap and scores”, as of September 11, 2026.
https://etf-copilot.com/compare/iwf-vs-mgk-vs-voog-vs-vug
- iShares Russell 1000 Growth ETF (IWF)
- Vanguard Morningstar Mega Cap Growth ETF (MGK)
- Vanguard S&P 500 Growth ETF (VOOG)
- Vanguard Morningstar Growth ETF (VUG)
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