IWF vs XLV Overlap
IWF is a U.S. growth equity ETF from IShares, while XLV is a health care sector ETF from SPDR. IWF and XLV show limited overlap, with an estimated weighted overlap of 7.53%. They share 23 holdings in the loaded dataset, led by LLY, ABBV, and ISRG.
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Quick Answer
IWF is a U.S. growth equity ETF from IShares, while XLV is a health care sector ETF from SPDR. IWF and XLV show limited overlap, with an estimated weighted overlap of 7.53%. They share 23 holdings in the loaded dataset, led by LLY, ABBV, and ISRG.
- 7.53% weighted overlap across 23 shared holdings.
- The top three shared holdings explain 63.57% of the measured overlap.
- IWF is the broader fund, while XLV 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
- XLV 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
IWF is a U.S. growth equity ETF from IShares, while XLV is a health care sector ETF from SPDR. IWF and XLV 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 LLY, ABBV, and ISRG.
How They Differ
IWF is a U.S. growth equity ETF from IShares, while XLV is a health care sector ETF from SPDR. IWF is the broader fund, while XLV is the more targeted sleeve. XLV has the lower expense ratio, while IWF 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 63.57% 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, XLV is the narrower expression. XLV has the lower expense ratio, while IWF charges more for its exposure.
Overlap Driver Snapshot
Concentration
The top three shared holdings explain 63.57% 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 XLV.
| Holding | Name | IWF Wt. | XLV Wt. | Overlap |
|---|---|---|---|---|
| LLY | ELI LILLY | 2.79% | 14.35% | 2.79% |
| ABBV | ABBVIE INC | 1.40% | 7.24% | 1.40% |
| ISRG | INTUITIVE SURGICAL INC | 0.60% | 3.11% | 0.60% |
| AMGN | AMGEN INC | 0.52% | 3.65% | 0.52% |
| VRTX | VERTEX PHARMACEUTICALS INC | 0.45% | 2.29% | 0.45% |
| MCK | MCKESSON CORP | 0.37% | 2.07% | 0.37% |
| COR | CENCORA INC | 0.22% | 1.23% | 0.22% |
| GILD | GILEAD SCIENCES INC | 0.17% | 3.33% | 0.17% |
| IDXX | IDEXX LABORATORIES INC | 0.17% | 0.86% | 0.17% |
| ZTS | ZOETIS INC CLASS A | 0.15% | 0.96% | 0.15% |
Why These ETFs Overlap
IWF is a U.S. growth equity ETF from IShares, while XLV is a health care sector ETF from SPDR. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are LLY, ABBV, and ISRG, which appear in both portfolios and push the overlap score higher.
Holding both IWF and XLV 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 XLV
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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.