ETF Overlap Checker
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ETF Overlap Checker

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BND vs VOO Overlap

Both funds come from Vanguard. BND is a fixed-income ETF, while VOO is a U.S. large-cap core ETF. BND and VOO show limited overlap, with an estimated weighted overlap of 0.37%. They share 1 holdings in the loaded dataset, led by N/A.

0.4% overlap
#
1Shared Holdings
OK
Low Overlap

Freshly computed.

Quick Answer

Both funds come from Vanguard. BND is a fixed-income ETF, while VOO is a U.S. large-cap core ETF. BND and VOO show limited overlap, with an estimated weighted overlap of 0.37%. They share 1 holdings in the loaded dataset, led by N/A.

  • 0.37% weighted overlap across 1 shared holdings.
  • The top three shared holdings explain 99.32% of the measured overlap.
  • VOO is the broader fund, while BND 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

BND holdings
Jul 18, 2026
VOO holdings
Jul 18, 2026
Overlap computed
Jul 19, 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

BND

Vanguard Total Bond Market ETF

Issuer
Vanguard
Asset class
Core Investment Grade Bond
Expense ratio
0.03%
AUM
$398B
Inception
Apr 3, 2007

ETF B

VOO

Vanguard S&P 500 ETF

Issuer
Vanguard
Asset class
Large Cap Equity
Expense ratio
0.03%
AUM
$2T
Inception
Sep 7, 2010

What Stands Out In This Comparison

01

What This Means

Both funds come from Vanguard. BND is a fixed-income ETF, while VOO is a U.S. large-cap core ETF. BND and VOO 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 N/A.

02

How They Differ

Both funds come from Vanguard. BND is a fixed-income ETF, while VOO is a U.S. large-cap core ETF. VOO is the broader fund, while BND is the more targeted sleeve. BND and VOO are priced very similarly on expense ratio.

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 99.32% 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

If you want the broader portfolio building block, VOO is usually the wider choice. If you want the more focused tilt, BND is the narrower expression. BND and VOO are priced very similarly on expense ratio.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 99.32% 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 BND and VOO.

HoldingNameBND Wt.VOO Wt.Overlap
N/AJapan Bank for International Cooperation1.07%0.37%0.37%

Why These ETFs Overlap

Both funds come from Vanguard. BND is a fixed-income ETF, while VOO is a U.S. large-cap core ETF. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are N/A, which appear in both portfolios and push the overlap score higher.

Holding both BND and VOO 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.

Related Comparisons

SPY vs VOO->VOO vs VTI->AGG vs BND->AGG vs VOO->

Frequently Asked Questions About BND and VOO

What is the overlap between BND and VOO?+
BND and VOO currently show an estimated weighted overlap of 0.37% based on the loaded holdings data.
How many holdings do BND and VOO share?+
They share 1 holdings in the current dataset.
Is the BND and VOO overlap high?+
The current verdict is Low Overlap. That means the two ETFs have limited duplication in portfolio weight.
Why do BND and VOO overlap?+
BND and VOO overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 99.32% of the measured overlap score.
Which ETF is broader, BND or VOO?+
VOO is the broader fund, while BND is the more targeted sleeve. That does not automatically make one better, but it helps explain why the pair can overlap while still serving different roles.

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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.

Looking for another pair? Start from the homepage or open the canonical URL for this comparison at /compare/BND-VOO.