VOO vs XLB Overlap

VOO is a U.S. large-cap core ETF from Vanguard, while XLB is an equity ETF from SPDR. VOO and XLB show limited overlap, with an estimated weighted overlap of 1.96%. They share 26 holdings in the loaded dataset, led by LIN, NEM, and FCX.

2.0% overlap
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26Shared Holdings
OK
Low Overlap

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Quick Answer

VOO is a U.S. large-cap core ETF from Vanguard, while XLB is an equity ETF from SPDR. VOO and XLB show limited overlap, with an estimated weighted overlap of 1.96%. They share 26 holdings in the loaded dataset, led by LIN, NEM, and FCX.

  • 1.96% weighted overlap across 26 shared holdings.
  • The top three shared holdings explain 36.38% of the measured overlap.
  • VOO is the broader fund, while XLB 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

VOO holdings
Mar 12, 2026
XLB holdings
Mar 12, 2026
Overlap computed
Mar 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

VOO

Vanguard S&P 500 ETF

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

ETF B

XLB

State Street Materials Select Sector SPDR ETF

Issuer
SPDR
Asset class
Equity
Expense ratio
0.08%
AUM
$7B
Inception
Dec 16, 1998

What Stands Out In This Comparison

01

What This Means

VOO is a U.S. large-cap core ETF from Vanguard, while XLB is an equity ETF from SPDR. VOO and XLB 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 LIN, NEM, and FCX.

02

How They Differ

VOO is a U.S. large-cap core ETF from Vanguard, while XLB is an equity ETF from SPDR. VOO is the broader fund, while XLB is the more targeted sleeve. VOO has the lower expense ratio, while XLB 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 36.38% 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, XLB is the narrower expression. VOO has the lower expense ratio, while XLB charges more for its exposure.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 36.38% 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 VOO and XLB.

HoldingVOO Wt.XLB Wt.Overlap
LIN0.36%14.09%0.36%
NEM0.21%8.22%0.21%
FCX0.15%5.68%0.15%
CRH0.14%4.51%0.14%
SHW0.14%4.83%0.14%
ECL0.12%4.54%0.12%
APD0.10%4.64%0.10%
CTVA0.08%4.68%0.08%
NUE0.07%4.14%0.07%
VMC0.07%3.66%0.07%

Why These ETFs Overlap

VOO is a U.S. large-cap core ETF from Vanguard, while XLB is an equity ETF from SPDR. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are LIN, NEM, and FCX, which appear in both portfolios and push the overlap score higher.

Holding both VOO and XLB 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

Frequently Asked Questions About VOO and XLB

What is the overlap between VOO and XLB?+
VOO and XLB currently show an estimated weighted overlap of 1.96% based on the loaded holdings data.
How many holdings do VOO and XLB share?+
They share 26 holdings in the current dataset.
Is the VOO and XLB overlap high?+
The current verdict is Low Overlap. That means the two ETFs have limited duplication in portfolio weight.
Why do VOO and XLB overlap?+
VOO and XLB overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 36.38% of the measured overlap score.
Which ETF is broader, VOO or XLB?+
VOO is the broader fund, while XLB 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.

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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