ITOT vs IVV Overlap

Both funds come from IShares. ITOT is an equity ETF, while IVV is a U.S. large-cap core ETF. ITOT and IVV show very heavy overlap, with an estimated weighted overlap of 88.18%. They share 502 holdings in the loaded dataset, led by NVDA, AAPL, and MSFT.

88.2% overlap
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502Shared Holdings
OK
Very High Overlap

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Quick Answer

Both funds come from IShares. ITOT is an equity ETF, while IVV is a U.S. large-cap core ETF. ITOT and IVV show very heavy overlap, with an estimated weighted overlap of 88.18%. They share 502 holdings in the loaded dataset, led by NVDA, AAPL, and MSFT.

  • 88.18% weighted overlap across 502 shared holdings.
  • The top three shared holdings explain 19.62% of the measured overlap.
  • IVV is the broader fund, while ITOT is more targeted.
  • 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

ITOT holdings
Mar 12, 2026
IVV 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

ETF A

ITOT

iShares Core S&P Total U.S. Stock Market ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.03%
AUM
$82B
Inception
Jan 20, 2004

ETF B

IVV

iShares Core S&P 500 ETF

Issuer
IShares
Asset class
Equity
Expense ratio
0.03%
AUM
$733B
Inception
May 15, 2000

What Stands Out In This Comparison

01

What This Means

Both funds come from IShares. ITOT is an equity ETF, while IVV is a U.S. large-cap core ETF. ITOT and IVV are closely aligned. A large share of their portfolio weight is invested in the same companies, especially NVDA, AAPL, and MSFT, 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 IShares. ITOT is an equity ETF, while IVV is a U.S. large-cap core ETF. IVV is the broader fund, while ITOT is the more targeted sleeve. ITOT and IVV 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 19.62% 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, IVV is usually the wider choice. If you want the more focused tilt, ITOT is the narrower expression. ITOT and IVV are priced very similarly on expense ratio.

Overlap Driver Snapshot

Concentration

The top three shared holdings explain 19.62% 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 ITOT and IVV.

HoldingITOT Wt.IVV Wt.Overlap
NVDA6.84%7.73%6.84%
AAPL5.87%6.64%5.87%
MSFT4.59%5.19%4.59%
AMZN3.17%3.59%3.17%
GOOGL2.72%3.08%2.72%
AVGO2.46%2.79%2.46%
GOOG2.17%2.46%2.17%
META2.17%2.45%2.17%
TSLA1.71%1.93%1.71%
BRK-B1.38%1.56%1.38%

Why These ETFs Overlap

Both funds come from IShares. ITOT is an equity ETF, while IVV 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 NVDA, AAPL, and MSFT, which appear in both portfolios and push the overlap score higher.

Holding both ITOT and IVV 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

Frequently Asked Questions About ITOT and IVV

What is the overlap between ITOT and IVV?+
ITOT and IVV currently show an estimated weighted overlap of 88.18% based on the loaded holdings data.
How many holdings do ITOT and IVV share?+
They share 502 holdings in the current dataset.
Is the ITOT and IVV overlap high?+
The current verdict is Very High Overlap. That means the two ETFs have substantial duplication in portfolio weight.
Why do ITOT and IVV overlap?+
ITOT and IVV overlap because the same large positions appear in both funds. In this comparison, the top three shared holdings explain 19.62% of the measured overlap score.
Which ETF is broader, ITOT or IVV?+
IVV is the broader fund, while ITOT 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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