ETF Overlap Checker
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ETF Overlap Checker

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IWO vs VV Overlap

IWO is a U.S. growth equity ETF from IShares, while VV is a large-cap U.S. equity ETF from Vanguard. IWO and VV show limited overlap, with an estimated weighted overlap of 0.03%. They share 1 holdings in the loaded dataset, led by 093712107.

0.0% overlap
#
1Shared Holdings
OK
Low Overlap

Freshly computed.

Quick Answer

IWO is a U.S. growth equity ETF from IShares, while VV is a large-cap U.S. equity ETF from Vanguard. IWO and VV show limited overlap, with an estimated weighted overlap of 0.03%. They share 1 holdings in the loaded dataset, led by 093712107.

  • 0.03% weighted overlap across 1 shared holdings.
  • The top three shared holdings explain 110% of the measured overlap.
  • VV is the broader fund, while IWO is more targeted.
  • The overlap is mostly explained by the top shared positions rather than sector labels alone.
  • Holding both can still add materially different exposure.

Data Freshness

IWO holdings
Aug 13, 2026
VV holdings
Aug 13, 2026
Overlap computed
Aug 14, 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

IWO

iShares Russell 2000 Growth ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.24%
AUM
$15B
Inception
Jul 24, 2000

ETF B

VV

Vanguard Morningstar Large-Cap ETF

Issuer
Vanguard
Asset class
Large Cap Equity
Expense ratio
0.03%
AUM
$74B
Inception
Jan 27, 2004

What Stands Out In This Comparison

01

What This Means

IWO is a U.S. growth equity ETF from IShares, while VV is a large-cap U.S. equity ETF from Vanguard. IWO and VV do not own much of the same portfolio weight. That usually means you are combining different parts of the market, with only a small amount of duplication through names like 093712107.

02

How They Differ

IWO is a U.S. growth equity ETF from IShares, while VV is a large-cap U.S. equity ETF from Vanguard. VV is the broader fund, while IWO is the more targeted sleeve. VV has the lower expense ratio, while IWO 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 110% 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, VV is usually the wider choice. If you want the more focused tilt, IWO is the narrower expression. VV has the lower expense ratio, while IWO charges more for its exposure.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 110% 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 IWO and VV.

HoldingNameIWO Wt.VV Wt.Overlap
093712107Bloom Energy Corp.1.99%0.03%0.03%

Why These ETFs Overlap

IWO is a U.S. growth equity ETF from IShares, while VV is a large-cap U.S. 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 093712107, which appear in both portfolios and push the overlap score higher.

Holding both IWO and VV can make sense if you want exposure to different sleeves of the market. The overlap is small enough that both funds may still improve diversification.

Related Comparisons

AGG vs IWO->AGG vs VV->BND vs IWO->BND vs VV->

Frequently Asked Questions About IWO and VV

What is the overlap between IWO and VV?+
IWO and VV currently show an estimated weighted overlap of 0.03% based on the loaded holdings data.
How many holdings do IWO and VV share?+
They share 1 holdings in the current dataset.
Is the IWO and VV overlap high?+
The current verdict is Low Overlap. That means the two ETFs have limited duplication in portfolio weight.
Why do IWO and VV overlap?+
IWO and VV overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 110% of the measured overlap score.
Which ETF is broader, IWO or VV?+
VV is the broader fund, while IWO 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/IWO-VV.