ETF Overlap Checker
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ETF Overlap Checker

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VB vs VXF Overlap

Both funds come from Vanguard. VB is a small-cap U.S. equity ETF, while VXF is an equity ETF. VB and VXF show very heavy overlap, with an estimated weighted overlap of 75.09%. They share 1179 holdings in the loaded dataset, led by FTI, 632307104, and CASY.

75.1% overlap
#
1179Shared Holdings
OK
Very High Overlap

Freshly computed.

Quick Answer

Both funds come from Vanguard. VB is a small-cap U.S. equity ETF, while VXF is an equity ETF. VB and VXF show very heavy overlap, with an estimated weighted overlap of 75.09%. They share 1179 holdings in the loaded dataset, led by FTI, 632307104, and CASY.

  • 75.09% weighted overlap across 1179 shared holdings.
  • The top three shared holdings explain 1.5% of the measured overlap.
  • VB 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 may add less diversification than the fund names imply.

Data Freshness

VB holdings
Aug 12, 2026
VXF holdings
Aug 12, 2026
Overlap computed
Aug 13, 2026
Data source
Financial Modeling Prep

Review the methodology for the overlap formula and refresh policy.

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About These ETFs

ETF A

VB

Vanguard Morningstar Small-Cap ETF

Issuer
Vanguard
Asset class
Small/Micro Cap Equity
Expense ratio
0.03%
AUM
$188B
Inception
Jan 26, 2004

ETF B

VXF

Vanguard Extended Market ETF

Issuer
Vanguard
Asset class
Mid Cap Equity
Expense ratio
0.05%
AUM
$98B
Inception
Dec 27, 2001

What Stands Out In This Comparison

01

What This Means

Both funds come from Vanguard. VB is a small-cap U.S. equity ETF, while VXF is an equity ETF. VB and VXF are closely aligned. A large share of their portfolio weight is invested in the same companies, especially FTI, 632307104, and CASY, which means holding both is likely to feel similar to increasing the size of one core position.

02

How They Differ

Both funds come from Vanguard. VB is a small-cap U.S. equity ETF, while VXF is an equity ETF. Neither fund clearly dominates on breadth, so the practical difference is more about weighting, index construction, and cost. VB has the lower expense ratio, while VXF charges more for its exposure.

03

What Drives The Overlap

The overlap is driven by a relatively small set of large shared positions. The top three shared holdings account for 1.5% of the score, which means the result is heavily influenced by the biggest common weights rather than a long tail of tiny positions.

04

When One May Fit Better

Because VB and VXF are closer in breadth, the better fit usually comes down to index methodology, issuer preference, and cost. VB has the lower expense ratio, while VXF charges more for its exposure.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 1.5% 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 VB and VXF.

HoldingNameVB Wt.VXF Wt.Overlap
FTITechnipFMC PLC0.39%0.38%0.38%
632307104Natera Inc0.37%0.38%0.37%
CASYCasey's General Stores Inc0.38%0.37%0.37%
UTHRUnited Therapeutics Corp0.36%0.35%0.35%
G3730V105FTAI Aviation Ltd0.35%0.34%0.34%
CWCurtiss-Wright Corp0.35%0.34%0.34%
FLEXFlex Ltd0.34%0.33%0.33%
XPOXPO Inc0.30%0.31%0.30%
WWDWoodward Inc0.30%0.29%0.29%
00217D100AST SpaceMobile Inc0.30%0.28%0.28%

Why These ETFs Overlap

Both funds come from Vanguard. VB is a small-cap U.S. equity ETF, while VXF is an equity ETF. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are FTI, 632307104, and CASY, which appear in both portfolios and push the overlap score higher.

Holding both VB and VXF is usually redundant unless you have a very specific reason to tilt toward their shared holdings. In most cases, one ETF is enough.

Related Comparisons

AGG vs VB->AGG vs VXF->BND vs VB->BND vs VXF->

Frequently Asked Questions About VB and VXF

What is the overlap between VB and VXF?+
VB and VXF currently show an estimated weighted overlap of 75.09% based on the loaded holdings data.
How many holdings do VB and VXF share?+
They share 1179 holdings in the current dataset.
Is the VB and VXF overlap high?+
The current verdict is Very High Overlap. That means the two ETFs have substantial duplication in portfolio weight.
Why do VB and VXF overlap?+
VB and VXF overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 1.5% of the measured overlap score.
Which ETF is broader, VB or VXF?+
VB and VXF look closer in breadth than a broad-vs-niche pair, so the main difference is more about strategy and weighting than simple market coverage.

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How Overlap Is Calculated

A straightforward approach used by portfolio analysts.

Overlap = sum(min(Weight_A, Weight_B)) for each shared holding

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.

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