ITOT vs RSP Overlap
ITOT is an equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. ITOT and RSP show meaningful overlap, with an estimated weighted overlap of 40.2%. They share 480 holdings in the loaded dataset, led by MU, LRCX, and VZ.
Served from cache.
Quick Answer
ITOT is an equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. ITOT and RSP show meaningful overlap, with an estimated weighted overlap of 40.2%. They share 480 holdings in the loaded dataset, led by MU, LRCX, and VZ.
- 40.2% weighted overlap across 480 shared holdings.
- The top three shared holdings explain 1.98% of the measured overlap.
- RSP 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
- RSP holdings
- Mar 12, 2026
- Overlap computed
- Mar 15, 2026
- Data source
- Financial Modeling Prep
Review the methodology for the overlap formula and refresh policy.
Compare another pair
About These ETFs
What Stands Out In This Comparison
What This Means
ITOT is an equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. ITOT and RSP overlap enough to matter, but they still bring different exposures to a portfolio. The overlap is concentrated in holdings such as MU, LRCX, and VZ, which explains why the score lands at 40.2%.
How They Differ
ITOT is an equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. RSP is the broader fund, while ITOT is the more targeted sleeve. ITOT has the lower expense ratio, while RSP charges more for its exposure.
What Drives The Overlap
The overlap is driven by a relatively small set of large shared positions. The top three shared holdings account for 1.98% of the score, which means the result is heavily influenced by the biggest common weights rather than a long tail of tiny positions.
When One May Fit Better
If you want the broader portfolio building block, RSP is usually the wider choice. If you want the more focused tilt, ITOT is the narrower expression. ITOT has the lower expense ratio, while RSP charges more for its exposure.
Overlap Driver Snapshot
Concentration
The top three shared holdings explain 1.98% 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 RSP.
| Holding | Name | ITOT Wt. | RSP Wt. | Overlap |
|---|---|---|---|---|
| MU | MICRON TECHNOLOGY INC | 0.69% | 0.30% | 0.30% |
| LRCX | LAM RESEARCH CORP | 0.41% | 0.25% | 0.25% |
| VZ | VERIZON COMMUNICATIONS INC | 0.33% | 0.25% | 0.25% |
| AMAT | APPLIED MATERIAL INC | 0.42% | 0.25% | 0.25% |
| XOM | EXXON MOBIL CORP | 0.95% | 0.24% | 0.24% |
| CVX | CHEVRON CORP | 0.54% | 0.24% | 0.24% |
| GILD | GILEAD SCIENCES INC | 0.28% | 0.24% | 0.24% |
| MRK | MERCK & CO INC | 0.44% | 0.23% | 0.23% |
| AMGN | AMGEN INC | 0.31% | 0.23% | 0.23% |
| HON | HONEYWELL INTERNATIONAL INC | 0.23% | 0.24% | 0.23% |
Why These ETFs Overlap
ITOT is an equity ETF from IShares, while RSP is an equal-weight U.S. equity ETF from Invesco. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are MU, LRCX, and VZ, which appear in both portfolios and push the overlap score higher.
Holding both ITOT and RSP can still be reasonable, but you should expect some duplication. The decision comes down to whether the non-overlapping parts of each ETF are important enough for your strategy.
Related Comparisons
Frequently Asked Questions About ITOT and RSP
What is the overlap between ITOT and RSP?+
How many holdings do ITOT and RSP share?+
Is the ITOT and RSP overlap high?+
Why do ITOT and RSP overlap?+
Which ETF is broader, ITOT or RSP?+
How Overlap Is Calculated
A straightforward approach used by portfolio analysts.
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.