ETF Overlap Checker
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ETF Overlap Checker

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MGK vs VUG Overlap

Both funds come from Vanguard. MGK is a U.S. growth equity ETF, while VUG is a U.S. growth equity ETF. MGK and VUG show very heavy overlap, with an estimated weighted overlap of 86.22%. They share 58 holdings in the loaded dataset, led by NVDA, AAPL, and MSFT.

86.2% overlap
#
58Shared Holdings
OK
Very High Overlap

Served from cache.

Quick Answer

Both funds come from Vanguard. MGK is a U.S. growth equity ETF, while VUG is a U.S. growth equity ETF. MGK and VUG show very heavy overlap, with an estimated weighted overlap of 86.22%. They share 58 holdings in the loaded dataset, led by NVDA, AAPL, and MSFT.

  • 86.22% weighted overlap across 58 shared holdings.
  • The top three shared holdings explain 40.19% of the measured overlap.
  • MGK and VUG are closer in breadth than a broad-vs-niche ETF pair.
  • The overlap is mostly explained by the top shared positions rather than sector labels alone.
  • Holding both may add less diversification than the fund names imply.

Data Freshness

MGK holdings
Aug 13, 2026
VUG holdings
Aug 13, 2026
Overlap computed
Aug 13, 2026
Data source
Financial Modeling Prep

Review the methodology for the overlap formula and refresh policy.

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About These ETFs

ETF A

MGK

Vanguard Morningstar Mega Cap Growth ETF

Issuer
Vanguard
Asset class
Large Cap Equity
Expense ratio
0.05%
AUM
$33B
Inception
Dec 17, 2007

ETF B

VUG

Vanguard Morningstar Growth ETF

Issuer
Vanguard
Asset class
Large Cap Equity
Expense ratio
0.03%
AUM
$379B
Inception
Jan 26, 2004

What Stands Out In This Comparison

01

What This Means

Both funds come from Vanguard. MGK is a U.S. growth equity ETF, while VUG is a U.S. growth equity ETF. MGK and VUG are closely aligned. A large share of their portfolio weight is invested in the same companies, especially NVDA, AAPL, and MSFT, which means holding both is likely to feel similar to increasing the size of one core position.

02

How They Differ

Both funds come from Vanguard. MGK is a U.S. growth equity ETF, while VUG is a U.S. growth equity ETF. Neither fund clearly dominates on breadth, so the practical difference is more about weighting, index construction, and cost. VUG has the lower expense ratio, while MGK charges more for its exposure.

03

What Drives The Overlap

The overlap is driven by a relatively small set of large shared positions. The top three shared holdings account for 40.19% of the score, which means the result is heavily influenced by the biggest common weights rather than a long tail of tiny positions.

04

When One May Fit Better

Because MGK and VUG are closer in breadth, the better fit usually comes down to index methodology, issuer preference, and cost. VUG has the lower expense ratio, while MGK charges more for its exposure.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 40.19% of the full overlap score.

That helps show whether the score comes from a handful of giant shared positions or from a broader mix of common holdings.

Shared Sector Tilt

Sector tags are not consistently available for the biggest shared positions in this dataset, so this comparison leans more on the specific holdings than on sector labels.

Top Shared Holdings

These are the holdings contributing the most to the overlap score between MGK and VUG.

HoldingNameMGK Wt.VUG Wt.Overlap
NVDANVIDIA Corp13.75%13.31%13.31%
AAPLApple Inc12.60%12.32%12.32%
MSFTMicrosoft Corp9.01%9.09%9.01%
GOOGLAlphabet Inc5.51%5.54%5.51%
AMZNAmazon.com Inc4.59%4.59%4.59%
AVGOBroadcom Inc4.40%4.40%4.40%
GOOGAlphabet Inc4.37%4.39%4.37%
METAMeta Platforms Inc4.17%4.15%4.15%
TSLATesla Inc4.18%3.47%3.47%
LLYEli Lilly & Co3.17%2.60%2.60%

Why These ETFs Overlap

Both funds come from Vanguard. MGK is a U.S. growth equity ETF, while VUG is a U.S. growth equity ETF. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are NVDA, AAPL, and MSFT, which appear in both portfolios and push the overlap score higher.

Holding both MGK and VUG is usually redundant unless you have a very specific reason to tilt toward their shared holdings. In most cases, one ETF is enough.

Related Comparisons

AGG vs MGK->AGG vs VUG->BND vs MGK->BND vs VUG->

Frequently Asked Questions About MGK and VUG

What is the overlap between MGK and VUG?+
MGK and VUG currently show an estimated weighted overlap of 86.22% based on the loaded holdings data.
How many holdings do MGK and VUG share?+
They share 58 holdings in the current dataset.
Is the MGK and VUG overlap high?+
The current verdict is Very High Overlap. That means the two ETFs have substantial duplication in portfolio weight.
Why do MGK and VUG overlap?+
MGK and VUG overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 40.19% of the measured overlap score.
Which ETF is broader, MGK or VUG?+
MGK and VUG look closer in breadth than a broad-vs-niche pair, so the main difference is more about strategy and weighting than simple market coverage.

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How Overlap Is Calculated

A straightforward approach used by portfolio analysts.

Overlap = sum(min(Weight_A, Weight_B)) for each shared holding

For every stock that appears in both ETFs, we take the smaller of the two weights. Adding up all those minimums gives the total overlap percentage. A score of 100% means the two ETFs hold the exact same stocks in the same proportions.

Want the full explanation? Read the methodology page.

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