Guardfolio Research · ETF Overlap
IWF vs ITOT Overlap: 34.0% of Weight in Shared Holdings
IWF (iShares Russell 1000 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
IWF 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 IWF 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 | IWF weight | ITOT weight | Shared (min) |
|---|---|---|---|
| NVIDIA Corp. (NVDA) | 14.79% | 7.91% | 7.91% |
| Apple Inc. (AAPL) | 11.58% | 6.04% | 6.04% |
| Microsoft Corp. (MSFT) | 8.26% | 4.20% | 4.20% |
| Amazon.com, Inc. (AMZN) | 5.06% | 3.60% | 3.60% |
| Alphabet Inc. (GOOGL) | 4.18% | 3.22% | 3.22% |
| Broadcom Inc. (AVGO) | 5.76% | 2.88% | 2.88% |
| Alphabet Inc. (GOOG) | 3.37% | 2.57% | 2.57% |
| Meta Platforms, Inc. (META) | 3.16% | 1.87% | 1.87% |
| Tesla, Inc. (TSLA) | 3.58% | 1.72% | 1.72% |
| Total shared top-10 weight | 59.7% | 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
IWF 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 (73.0% combined sector overlap).
| Sector | IWF | ITOT |
|---|---|---|
| Technology | 52.8% | 32.2% |
| Consumer Discretionary | 13.2% | 10.5% |
| Communication Services | 9.5% | 7.6% |
| Healthcare | 6.4% | 9.1% |
| Financial Services | 6.3% | 12.8% |
| Industrials | 5.7% | 9.6% |
The Verdict
Should you hold both IWF and ITOT?
IWF 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
IWF vs ITOT overlap: common questions
How much do IWF and ITOT overlap?
IWF (iShares Russell 1000 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 73.0% sector overlap. They share 9 top-10 holdings: NVDA, AAPL, MSFT, AMZN, GOOGL, AVGO, GOOG, META, TSLA.
What stocks do IWF and ITOT both hold?
Both IWF 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 IWF and ITOT?
IWF 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 IWF and ITOT?
IWF is a large-cap growth fund (US Large-Cap Growth, 0.19% expense ratio) and ITOT is a total US market fund (US Total Market, 0.03% expense ratio). IWF's top 10 is 62.2% of the fund; ITOT's is 35.2%.
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