ETF Overlap Checker
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ETF Overlap Checker

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IVW vs MGK Overlap

IVW is a U.S. growth equity ETF from IShares, while MGK is a U.S. growth equity ETF from Vanguard. IVW and MGK show heavy overlap, with an estimated weighted overlap of 72.61%. They share 48 holdings in the loaded dataset, led by NVDA, MSFT, and AAPL.

72.6% overlap
#
48Shared Holdings
OK
High Overlap

Freshly computed.

Quick Answer

IVW is a U.S. growth equity ETF from IShares, while MGK is a U.S. growth equity ETF from Vanguard. IVW and MGK show heavy overlap, with an estimated weighted overlap of 72.61%. They share 48 holdings in the loaded dataset, led by NVDA, MSFT, and AAPL.

  • 72.61% weighted overlap across 48 shared holdings.
  • The top three shared holdings explain 40.2% of the measured overlap.
  • IVW is the broader fund, while MGK is more targeted.
  • 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

IVW holdings
Aug 13, 2026
MGK 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

IVW

iShares S&P 500 Growth ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.18%
AUM
$77B
Inception
May 22, 2000

ETF B

MGK

Vanguard Morningstar Mega Cap Growth ETF

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

What Stands Out In This Comparison

01

What This Means

IVW is a U.S. growth equity ETF from IShares, while MGK is a U.S. growth equity ETF from Vanguard. IVW and MGK share a large chunk of the same portfolio weight. The overlap is driven by positions like NVDA, MSFT, and AAPL, so owning both may not diversify your stock exposure as much as the fund names suggest.

02

How They Differ

IVW is a U.S. growth equity ETF from IShares, while MGK is a U.S. growth equity ETF from Vanguard. IVW is the broader fund, while MGK is the more targeted sleeve. MGK has the lower expense ratio, while IVW 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 40.2% 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

If you want the broader portfolio building block, IVW is usually the wider choice. If you want the more focused tilt, MGK is the narrower expression. MGK has the lower expense ratio, while IVW charges more for its exposure.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 40.2% 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 IVW and MGK.

HoldingNameIVW Wt.MGK Wt.Overlap
NVDANVIDIA Corp.14.62%13.75%13.75%
MSFTMicrosoft Corp.9.48%9.01%9.01%
AAPLApple Inc.6.43%12.60%6.43%
GOOGLAlphabet Inc.5.78%5.51%5.51%
AVGOBroadcom Inc5.06%4.40%4.40%
GOOGAlphabet Inc.4.63%4.37%4.37%
METAMeta Platforms Inc4.32%4.17%4.17%
AMZNAmazon.com, Inc.3.72%4.59%3.72%
LLYEli Lilly & Co.2.51%3.17%2.51%
TSLATesla Inc2.24%4.18%2.24%

Why These ETFs Overlap

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

Holding both IVW and MGK may add less diversification than you expect. Many investors would choose the ETF that best matches their goal and avoid paying for duplicate exposure.

Related Comparisons

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Frequently Asked Questions About IVW and MGK

What is the overlap between IVW and MGK?+
IVW and MGK currently show an estimated weighted overlap of 72.61% based on the loaded holdings data.
How many holdings do IVW and MGK share?+
They share 48 holdings in the current dataset.
Is the IVW and MGK overlap high?+
The current verdict is High Overlap. That means the two ETFs have substantial duplication in portfolio weight.
Why do IVW and MGK overlap?+
IVW and MGK overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 40.2% of the measured overlap score.
Which ETF is broader, IVW or MGK?+
IVW is the broader fund, while MGK is the more targeted sleeve. That does not automatically make one better, but it helps explain why the pair can overlap while still serving different roles.

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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.

Looking for another pair? Start from the homepage or open the canonical URL for this comparison at /compare/IVW-MGK.