IVW vs IWR Overlap

Both funds come from IShares. IVW is a U.S. growth equity ETF, while IWR is a mid-cap U.S. equity ETF. IVW and IWR show limited overlap, with an estimated weighted overlap of 5.74%. They share 57 holdings in the loaded dataset, led by HWM, SNDK, and PWR.

5.7% overlap
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57Shared Holdings
OK
Low Overlap

Served from cache.

Quick Answer

Both funds come from IShares. IVW is a U.S. growth equity ETF, while IWR is a mid-cap U.S. equity ETF. IVW and IWR show limited overlap, with an estimated weighted overlap of 5.74%. They share 57 holdings in the loaded dataset, led by HWM, SNDK, and PWR.

  • 5.74% weighted overlap across 57 shared holdings.
  • The top three shared holdings explain 15.87% of the measured overlap.
  • IVW is the broader fund, while IWR 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

IVW holdings
Mar 12, 2026
IWR holdings
Mar 12, 2026
Overlap computed
Mar 15, 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
$64B
Inception
May 22, 2000

ETF B

IWR

iShares Russell Mid-Cap ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.18%
AUM
$48B
Inception
Jul 17, 2001

What Stands Out In This Comparison

01

What This Means

Both funds come from IShares. IVW is a U.S. growth equity ETF, while IWR is a mid-cap U.S. equity ETF. IVW and IWR 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 HWM, SNDK, and PWR.

02

How They Differ

Both funds come from IShares. IVW is a U.S. growth equity ETF, while IWR is a mid-cap U.S. equity ETF. IVW is the broader fund, while IWR is the more targeted sleeve. IVW and IWR are priced very similarly on expense ratio.

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 15.87% 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, IWR is the narrower expression. IVW and IWR are priced very similarly on expense ratio.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 15.87% 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 IWR.

HoldingIVW Wt.IWR Wt.Overlap
HWM0.34%0.79%0.34%
SNDK0.30%0.68%0.30%
PWR0.28%0.65%0.28%
GLW0.24%0.83%0.24%
0I1W.L0.24%0.56%0.24%
HLT0.23%0.53%0.23%
HOOD0.20%0.45%0.20%
VST0.17%0.43%0.17%
CMI0.17%0.60%0.17%
BK0.17%0.63%0.17%

Why These ETFs Overlap

Both funds come from IShares. IVW is a U.S. growth equity ETF, while IWR is a mid-cap U.S. equity ETF. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are HWM, SNDK, and PWR, which appear in both portfolios and push the overlap score higher.

Holding both IVW and IWR 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

Frequently Asked Questions About IVW and IWR

What is the overlap between IVW and IWR?+
IVW and IWR currently show an estimated weighted overlap of 5.74% based on the loaded holdings data.
How many holdings do IVW and IWR share?+
They share 57 holdings in the current dataset.
Is the IVW and IWR overlap high?+
The current verdict is Low Overlap. That means the two ETFs have limited duplication in portfolio weight.
Why do IVW and IWR overlap?+
IVW and IWR overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 15.87% of the measured overlap score.
Which ETF is broader, IVW or IWR?+
IVW is the broader fund, while IWR 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.

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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