Guardfolio Research · ETF Overlap
VUG vs ITOT Overlap: 34.0% of Weight in Shared Holdings
VUG (Vanguard Growth) and ITOT (iShares Core S&P Total US Stock Market) overlap by 34.0% of weight through 9 shared top-10 holdings — including NVDA, AAPL, MSFT, AMZN, GOOGL. Here is exactly which stocks duplicate, the sector picture, and whether holding both concentrates or diversifies your portfolio.
Overlap Summary
Bottom line
VUG and ITOT share 34.0% of their top-10 weight across 9 common holdings. That is significant overlap: the funds reinforce the same bet, so combining them concentrates you more than it diversifies.
The Data
Exactly which stocks VUG and ITOT share
The table below shows every holding that appears in both funds' top 10, with each fund's weight and the shared (minimum) weight that counts toward overlap.
| Holding | VUG weight | ITOT weight | Shared (min) |
|---|---|---|---|
| NVIDIA Corp. (NVDA) | 13.33% | 7.91% | 7.91% |
| Apple Inc. (AAPL) | 11.53% | 6.04% | 6.04% |
| Microsoft Corp. (MSFT) | 8.76% | 4.20% | 4.20% |
| Amazon.com, Inc. (AMZN) | 5.11% | 3.60% | 3.60% |
| Alphabet Inc. (GOOGL) | 6.49% | 3.22% | 3.22% |
| Broadcom Inc. (AVGO) | 5.20% | 2.88% | 2.88% |
| Alphabet Inc. (GOOG) | 5.11% | 2.57% | 2.57% |
| Meta Platforms, Inc. (META) | 3.88% | 1.87% | 1.87% |
| Tesla, Inc. (TSLA) | 3.12% | 1.72% | 1.72% |
| Total shared top-10 weight | 62.5% | 34.0% | 34.0% |
Weights are approximate, based on the most recent quarterly holdings. The 34.0% figure is the sum of the lesser of each fund's weight per shared holding (the conservative top-10 method).
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Sector Picture
VUG vs ITOT: sector exposure side by side
Two funds can share few holdings yet still concentrate the same sectors. Here is how the top sectors compare (72.0% combined sector overlap).
| Sector | VUG | ITOT |
|---|---|---|
| Technology | 50.5% | 32.2% |
| Consumer Discretionary | 14.3% | 10.5% |
| Communication Services | 10.7% | 7.6% |
| Financial Services | 6.6% | 12.8% |
| Healthcare | 5.5% | 9.1% |
| Industrials | 5.5% | 9.6% |
The Verdict
Should you hold both VUG and ITOT?
VUG and ITOT share 34.0% of their top-10 weight across 9 common holdings. That is significant overlap: the funds reinforce the same bet, so combining them concentrates you more than it diversifies. Worth knowing before you size both as core positions.
FAQ
VUG vs ITOT overlap: common questions
How much do VUG and ITOT overlap?
VUG (Vanguard Growth) and ITOT (iShares Core S&P Total US Stock Market) overlap by approximately 34.0% of weight based on their top-10 holdings, with 72.0% sector overlap. They share 9 top-10 holdings: NVDA, AAPL, MSFT, AMZN, GOOGL, AVGO, GOOG, META, TSLA.
What stocks do VUG and ITOT both hold?
Both VUG and ITOT hold NVIDIA Corp (NVDA), Apple Inc (AAPL), Microsoft Corp (MSFT), Amazon (AMZN), Alphabet Inc (GOOGL), Broadcom Inc (AVGO), Alphabet Inc (GOOG), Meta Platforms (META) among their top positions. These shared names account for the 34.0% weight overlap.
Is it worth holding both VUG and ITOT?
VUG and ITOT share 34.0% of their top-10 weight across 9 common holdings. That is significant overlap: the funds reinforce the same bet, so combining them concentrates you more than it diversifies. Worth knowing before you size both as core positions.
What is the difference between VUG and ITOT?
VUG is a large-cap growth fund (US Large-Cap Growth, 0.04% expense ratio) and ITOT is a total US market fund (US Total Market, 0.03% expense ratio). VUG's top 10 is 64.8% of the fund; ITOT's is 35.2%.
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