IUSG vs MGK: holdings overlap, shared companies and scores
As of October 28, 2026, IUSG and MGK overlap 70.7% by weight. iShares Core S&P U.S. Growth ETF (IUSG): S&P U.S. Growth index. Vanguard Morningstar Mega Cap Growth ETF (MGK): U.S. mega-cap growth stocks.
Updated October 28, 2026
Where IUSG and MGK trade against their own history
IUSG trades at 26.8 times earnings, against its own median of 27.5, and is cheaper than 56% of its own last 9 years.
MGK trades at 30.2 times earnings, against its own median of 33.2, and is cheaper than 58% of its own last 9 years.
What moved IUSG and MGK this week
IUSG fell 0.6% in the week to October 28, 2026. The holdings that moved it most were Meta Platforms (−12.2%), Nvidia (−3.0%) and Alphabet (−2.9%); Micron Technology (+7.6%) pushed the other way.
MGK fell 0.8% in the week to October 28, 2026. The holdings that moved it most were Meta Platforms (−12.2%), Nvidia (−3.0%) and Alphabet (−2.9%); Broadcom (+4.1%) pushed the other way.
What do IUSG and MGK each hold?
What's inside IUSG: Tech 61%, Magnificent 7 49%.
57% of IUSG is its ten largest holdings.
What's inside MGK: Tech 70%, Magnificent 7 57%.
65% of MGK is its ten largest holdings.
How much do IUSG and MGK overlap? 70.7% by weight
As of October 28, 2026, IUSG and MGK overlap 70.7% by weight.
72% of IUSG is already inside MGK.
94% of MGK is already inside IUSG.
IUSG holds 402 companies and MGK holds 54; 43 are in both.
Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.
How does ETF Copilot score IUSG and MGK? 7.5 and 7.4 out of 10
As of October 28, 2026, ETF Copilot scores IUSG 7.5 out of 10 and MGK 7.4 out of 10.
They differ most on Risk: IUSG 3.1 and MGK 2.4.
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 | IUSG | MGK |
|---|---|---|
| Growth | 9.1 | 9.2 |
| Value | 5.9 | 5.7 |
| Risk | 3.1 | 2.4 |
| Quality | 9.8 | 9.8 |
| Return | 8.3 | 8.3 |
IUSG is the cheaper of the two at 0.04% a year
As of October 28, 2026, IUSG charges 0.04% a year, yields 0.48% and holds $33.6B in assets across 402 positions.
As of October 28, 2026, MGK charges 0.05% a year, yields 0.34% and holds $35.1B in assets across 54 positions.
| Measure | IUSG | MGK |
|---|---|---|
| Expense ratio | 0.04% | 0.05% |
| Dividend yield | 0.48% | 0.34% |
| Assets under management | $33.6B | $35.1B |
| Holdings | 402 | 54 |
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.
Compare with similar funds
Cite this
ETF Copilot, “IUSG vs MGK holdings overlap and scores”, as of October 28, 2026.
https://etf-copilot.com/compare/iusg-vs-mgk
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