IVV vs IWR Overlap
Both funds come from IShares. IVV is a U.S. large-cap core ETF, while IWR is a mid-cap U.S. equity ETF. IVV and IWR show limited overlap, with an estimated weighted overlap of 14.56%. They share 307 holdings in the loaded dataset, led by GLW, HWM, and SNDK.
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Quick Answer
Both funds come from IShares. IVV is a U.S. large-cap core ETF, while IWR is a mid-cap U.S. equity ETF. IVV and IWR show limited overlap, with an estimated weighted overlap of 14.56%. They share 307 holdings in the loaded dataset, led by GLW, HWM, and SNDK.
- 14.56% weighted overlap across 307 shared holdings.
- The top three shared holdings explain 3.54% of the measured overlap.
- IVV 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
- IVV 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
What Stands Out In This Comparison
What This Means
Both funds come from IShares. IVV is a U.S. large-cap core ETF, while IWR is a mid-cap U.S. equity ETF. IVV 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 GLW, HWM, and SNDK.
How They Differ
Both funds come from IShares. IVV is a U.S. large-cap core ETF, while IWR is a mid-cap U.S. equity ETF. IVV is the broader fund, while IWR is the more targeted sleeve. IVV has the lower expense ratio, while IWR 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 3.54% 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, IVV is usually the wider choice. If you want the more focused tilt, IWR is the narrower expression. IVV has the lower expense ratio, while IWR charges more for its exposure.
Overlap Driver Snapshot
Concentration
The top three shared holdings explain 3.54% 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 IVV and IWR.
| Holding | Name | IVV Wt. | IWR Wt. | Overlap |
|---|---|---|---|---|
| GLW | CORNING INC | 0.18% | 0.83% | 0.18% |
| HWM | HOWMET AEROSPACE INC | 0.18% | 0.79% | 0.18% |
| SNDK | SANDISK CORP | 0.16% | 0.68% | 0.16% |
| WDC | WESTERN DIGITAL CORP | 0.16% | 0.70% | 0.16% |
| PWR | QUANTA SERVICES INC | 0.14% | 0.65% | 0.14% |
| BK | BANK OF NEW YORK MELLON CORP | 0.14% | 0.63% | 0.14% |
| CMI | CUMMINS INC | 0.13% | 0.60% | 0.13% |
| 0I1W.L | ROYAL CARIBBEAN GROUP LTD | 0.12% | 0.56% | 0.12% |
| HLT | HILTON WORLDWIDE HOLDINGS INC | 0.12% | 0.53% | 0.12% |
| ROST | ROSS STORES INC | 0.12% | 0.53% | 0.12% |
Why These ETFs Overlap
Both funds come from IShares. IVV is a U.S. large-cap core 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 GLW, HWM, and SNDK, which appear in both portfolios and push the overlap score higher.
Holding both IVV 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.
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Frequently Asked Questions About IVV and IWR
What is the overlap between IVV and IWR?+
How many holdings do IVV and IWR share?+
Is the IVV and IWR overlap high?+
Why do IVV and IWR overlap?+
Which ETF is broader, IVV or IWR?+
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.