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 15.37%. They share 13 holdings in the loaded dataset, led by NVDA, AVGO, and LRCX.
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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 15.37%. They share 13 holdings in the loaded dataset, led by NVDA, AVGO, and LRCX.
- 15.37% weighted overlap across 13 shared holdings.
- The top three shared holdings explain 85.41% 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
- Mar 12, 2026
- SOXX 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
What Stands Out In This Comparison
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.
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.
What Drives The Overlap
The overlap is driven by a relatively small set of large shared positions. The top three shared holdings account for 85.41% of the score, which means the result is heavily influenced by the biggest common weights rather than a long tail of tiny positions.
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 85.41% 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.
| Holding | Name | IWF Wt. | SOXX Wt. | Overlap |
|---|---|---|---|---|
| NVDA | NVIDIA CORP | 12.68% | 7.28% | 7.28% |
| AVGO | BROADCOM INC | 4.91% | 5.92% | 4.91% |
| LRCX | LAM RESEARCH CORP | 0.94% | 4.81% | 0.94% |
| AMD | ADVANCED MICRO DEVICES INC | 0.67% | 6.51% | 0.67% |
| KLAC | KLA CORP | 0.67% | 4.31% | 0.67% |
| AMAT | APPLIED MATERIAL INC | 0.27% | 7.04% | 0.27% |
| TXN | TEXAS INSTRUMENT INC | 0.26% | 4.09% | 0.26% |
| MPWR | MONOLITHIC POWER SYSTEMS INC | 0.17% | 3.96% | 0.17% |
| QCOM | QUALCOMM INC | 0.12% | 2.80% | 0.12% |
| ALAB | ASTERA LABS INC | 0.05% | 1.39% | 0.05% |
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.
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Frequently Asked Questions About IWF and SOXX
What is the overlap between IWF and SOXX?+
How many holdings do IWF and SOXX share?+
Is the IWF and SOXX overlap high?+
Why do IWF and SOXX overlap?+
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How Overlap Is Calculated
A straightforward approach used by portfolio analysts.
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.