IWF vs VXF Overlap
IWF is a U.S. growth equity ETF from IShares, while VXF is an equity ETF from Vanguard. IWF and VXF show limited overlap, with an estimated weighted overlap of 4.34%. They share 180 holdings in the loaded dataset, led by VRT, NET, and SNOW.
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Quick Answer
IWF is a U.S. growth equity ETF from IShares, while VXF is an equity ETF from Vanguard. IWF and VXF show limited overlap, with an estimated weighted overlap of 4.34%. They share 180 holdings in the loaded dataset, led by VRT, NET, and SNOW.
- 4.34% weighted overlap across 180 shared holdings.
- The top three shared holdings explain 18.04% of the measured overlap.
- IWF and VXF are closer in breadth than a broad-vs-niche ETF pair.
- 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
- VXF 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 VXF is an equity ETF from Vanguard. IWF and VXF 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 VRT, NET, and SNOW.
How They Differ
IWF is a U.S. growth equity ETF from IShares, while VXF is an equity ETF from Vanguard. Neither fund clearly dominates on breadth, so the practical difference is more about weighting, index construction, and cost. VXF 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 18.04% 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
Because IWF and VXF are closer in breadth, the better fit usually comes down to index methodology, issuer preference, and cost. VXF has the lower expense ratio, while IWF charges more for its exposure.
Overlap Driver Snapshot
Concentration
The top three shared holdings explain 18.04% 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 VXF.
| Holding | Name | IWF Wt. | VXF Wt. | Overlap |
|---|---|---|---|---|
| VRT | VERTIV HOLDINGS CLASS A | 0.36% | 0.90% | 0.36% |
| NET | CLOUDFLARE INC CLASS A | 0.23% | 0.70% | 0.23% |
| SNOW | SNOWFLAKE INC | 0.20% | 0.82% | 0.20% |
| ALNY | ALNYLAM PHARMACEUTICALS INC | 0.14% | 0.56% | 0.14% |
| RBLX | ROBLOX CORP CLASS A | 0.13% | 0.54% | 0.13% |
| RKLB | ROCKET LAB CORP | 0.10% | 0.47% | 0.10% |
| INSM | INSMED INC | 0.10% | 0.42% | 0.10% |
| FTAI | FTAI AVIATION LTD | 0.10% | 0.35% | 0.10% |
| NTRA | NATERA INC | 0.09% | 0.40% | 0.09% |
| CPNG | COUPANG INC CLASS A | 0.09% | 0.34% | 0.09% |
Why These ETFs Overlap
IWF is a U.S. growth equity ETF from IShares, while VXF is an equity ETF from Vanguard. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are VRT, NET, and SNOW, which appear in both portfolios and push the overlap score higher.
Holding both IWF and VXF 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 VXF
What is the overlap between IWF and VXF?+
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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.