IWD vs SOXX Overlap
Both funds come from IShares. IWD is a U.S. value equity ETF, while SOXX is a semiconductor-focused equity ETF. IWD and SOXX show limited overlap, with an estimated weighted overlap of 5.11%. They share 14 holdings in the loaded dataset, led by MU, INTC, and AMAT.
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Quick Answer
Both funds come from IShares. IWD is a U.S. value equity ETF, while SOXX is a semiconductor-focused equity ETF. IWD and SOXX show limited overlap, with an estimated weighted overlap of 5.11%. They share 14 holdings in the loaded dataset, led by MU, INTC, and AMAT.
- 5.11% weighted overlap across 14 shared holdings.
- The top three shared holdings explain 54.03% of the measured overlap.
- IWD 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
- IWD 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. IWD is a U.S. value equity ETF, while SOXX is a semiconductor-focused equity ETF. IWD 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 MU, INTC, and AMAT.
How They Differ
Both funds come from IShares. IWD is a U.S. value equity ETF, while SOXX is a semiconductor-focused equity ETF. IWD is the broader fund, while SOXX is the more targeted sleeve. IWD 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 54.03% 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, IWD is usually the wider choice. If you want the more focused tilt, SOXX is the narrower expression. IWD has the lower expense ratio, while SOXX charges more for its exposure.
Overlap Driver Snapshot
Concentration
The top three shared holdings explain 54.03% 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 IWD and SOXX.
| Holding | Name | IWD Wt. | SOXX Wt. | Overlap |
|---|---|---|---|---|
| MU | MICRON TECHNOLOGY INC | 1.45% | 8.75% | 1.45% |
| INTC | INTEL CORPORATION CORP | 0.67% | 4.02% | 0.67% |
| AMAT | APPLIED MATERIAL INC | 0.64% | 7.04% | 0.64% |
| ADI | ANALOG DEVICES INC | 0.51% | 4.19% | 0.51% |
| AMD | ADVANCED MICRO DEVICES INC | 0.44% | 6.51% | 0.44% |
| QCOM | QUALCOMM INC | 0.36% | 2.80% | 0.36% |
| TXN | TEXAS INSTRUMENT INC | 0.34% | 4.09% | 0.34% |
| MRVL | MARVELL TECHNOLOGY INC | 0.24% | 3.64% | 0.24% |
| TER | TERADYNE INC | 0.15% | 4.20% | 0.15% |
| MCHP | MICROCHIP TECHNOLOGY INC | 0.11% | 3.08% | 0.11% |
Why These ETFs Overlap
Both funds come from IShares. IWD is a U.S. value 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 MU, INTC, and AMAT, which appear in both portfolios and push the overlap score higher.
Holding both IWD 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 IWD and SOXX
What is the overlap between IWD and SOXX?+
How many holdings do IWD and SOXX share?+
Is the IWD and SOXX overlap high?+
Why do IWD and SOXX overlap?+
Which ETF is broader, IWD or SOXX?+
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.