ETF Overlap Checker
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ETF Overlap Checker

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IWF vs SOXX Overlap

Both funds come from IShares. IWF is a U.S. growth equity ETF, while SOXX is a semiconductor-focused equity ETF. IWF and SOXX show limited overlap, with an estimated weighted overlap of 17.13%. They share 15 holdings in the loaded dataset, led by NVDA, AVGO, and LRCX.

17.1% overlap
#
15Shared Holdings
OK
Low Overlap

Freshly computed.

Quick Answer

Both funds come from IShares. IWF is a U.S. growth equity ETF, while SOXX is a semiconductor-focused equity ETF. IWF and SOXX show limited overlap, with an estimated weighted overlap of 17.13%. They share 15 holdings in the loaded dataset, led by NVDA, AVGO, and LRCX.

  • 17.13% weighted overlap across 15 shared holdings.
  • The top three shared holdings explain 82.64% of the measured overlap.
  • IWF is the broader fund, while SOXX 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

IWF holdings
Aug 13, 2026
SOXX 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

IWF

iShares Russell 1000 Growth ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.18%
AUM
$127B
Inception
May 22, 2000

ETF B

SOXX

iShares Semiconductor ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.33%
AUM
$43B
Inception
Jul 10, 2001

What Stands Out In This Comparison

01

What This Means

Both funds come from IShares. IWF is a U.S. growth equity ETF, while SOXX is a semiconductor-focused equity ETF. IWF and SOXX 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 NVDA, AVGO, and LRCX.

02

How They Differ

Both funds come from IShares. IWF is a U.S. growth equity ETF, while SOXX is a semiconductor-focused equity ETF. IWF is the broader fund, while SOXX is the more targeted sleeve. IWF has the lower expense ratio, while SOXX 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 82.64% 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, IWF is usually the wider choice. If you want the more focused tilt, SOXX is the narrower expression. IWF has the lower expense ratio, while SOXX charges more for its exposure.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 82.64% 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 IWF and SOXX.

HoldingNameIWF Wt.SOXX Wt.Overlap
NVDANVIDIA CORPORATION12.92%8.40%8.40%
AVGOBROADCOM INC.4.79%8.27%4.79%
LRCXLAM RESEARCH CORPORATION0.97%3.90%0.97%
KLACKLA CORPORATION0.70%4.12%0.70%
AMDADVANCED MICRO DEVICES, INC.0.69%6.47%0.69%
066922519BlackRock Funds III: BlackRock Cash Funds: Institutional; SL Agency Shares0.54%1.11%0.54%
AMATAPPLIED MATERIALS, INC.0.28%5.84%0.28%
TXNTEXAS INSTRUMENTS INCORPORATED0.26%3.91%0.26%
MPWRMONOLITHIC POWER SYSTEMS, INC.0.18%4.08%0.18%
QCOMQUALCOMM INCORPORATED0.11%3.86%0.11%

Why These ETFs Overlap

Both funds come from IShares. IWF is a U.S. growth equity ETF, while SOXX is a semiconductor-focused equity ETF. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are NVDA, AVGO, and LRCX, which appear in both portfolios and push the overlap score higher.

Holding both IWF and SOXX 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 IWF->AGG vs SOXX->BND vs IWF->BND vs SOXX->

Frequently Asked Questions About IWF and SOXX

What is the overlap between IWF and SOXX?+
IWF and SOXX currently show an estimated weighted overlap of 17.13% based on the loaded holdings data.
How many holdings do IWF and SOXX share?+
They share 15 holdings in the current dataset.
Is the IWF and SOXX overlap high?+
The current verdict is Low Overlap. That means the two ETFs have limited duplication in portfolio weight.
Why do IWF and SOXX overlap?+
IWF and SOXX overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 82.64% of the measured overlap score.
Which ETF is broader, IWF or SOXX?+
IWF is the broader fund, while SOXX 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/IWF-SOXX.