MTUM vs XLK Overlap
MTUM is an equity ETF from IShares, while XLK is a technology-focused equity ETF from SPDR. MTUM and XLK show meaningful overlap, with an estimated weighted overlap of 36.15%. They share 23 holdings in the loaded dataset, led by AVGO, NVDA, and MU.
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Quick Answer
MTUM is an equity ETF from IShares, while XLK is a technology-focused equity ETF from SPDR. MTUM and XLK show meaningful overlap, with an estimated weighted overlap of 36.15%. They share 23 holdings in the loaded dataset, led by AVGO, NVDA, and MU.
- 36.15% weighted overlap across 23 shared holdings.
- The top three shared holdings explain 38.66% of the measured overlap.
- MTUM is the broader fund, while XLK 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
- MTUM holdings
- Mar 12, 2026
- XLK 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
What Stands Out In This Comparison
What This Means
MTUM is an equity ETF from IShares, while XLK is a technology-focused equity ETF from SPDR. MTUM and XLK overlap enough to matter, but they still bring different exposures to a portfolio. The overlap is concentrated in holdings such as AVGO, NVDA, and MU, which explains why the score lands at 36.15%.
How They Differ
MTUM is an equity ETF from IShares, while XLK is a technology-focused equity ETF from SPDR. MTUM is the broader fund, while XLK is the more targeted sleeve. XLK has the lower expense ratio, while MTUM 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 38.66% 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, MTUM is usually the wider choice. If you want the more focused tilt, XLK is the narrower expression. XLK has the lower expense ratio, while MTUM charges more for its exposure.
Overlap Driver Snapshot
Concentration
The top three shared holdings explain 38.66% 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 MTUM and XLK.
| Holding | Name | MTUM Wt. | XLK Wt. | Overlap |
|---|---|---|---|---|
| AVGO | BROADCOM INC | 5.07% | 5.48% | 5.07% |
| NVDA | NVIDIA CORP | 4.91% | 15.20% | 4.91% |
| MU | MICRON TECHNOLOGY INC | 4.96% | 4.00% | 4.00% |
| AMD | ADVANCED MICRO DEVICES INC | 2.64% | 2.92% | 2.64% |
| LRCX | LAM RESEARCH CORP | 3.45% | 2.39% | 2.39% |
| AMAT | APPLIED MATERIAL INC | 2.36% | 2.43% | 2.36% |
| PLTR | PALANTIR TECHNOLOGIES INC CLASS A | 1.89% | 3.05% | 1.89% |
| INTC | INTEL CORPORATION CORP | 2.17% | 1.85% | 1.85% |
| KLAC | KLA CORP | 1.52% | 1.69% | 1.52% |
| IBM | INTERNATIONAL BUSINESS MACHINES CO | 1.48% | 2.07% | 1.48% |
Why These ETFs Overlap
MTUM is an equity ETF from IShares, while XLK is a technology-focused 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 AVGO, NVDA, and MU, which appear in both portfolios and push the overlap score higher.
Holding both MTUM and XLK 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.
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Frequently Asked Questions About MTUM and XLK
What is the overlap between MTUM and XLK?+
How many holdings do MTUM and XLK share?+
Is the MTUM and XLK overlap high?+
Why do MTUM and XLK overlap?+
Which ETF is broader, MTUM or XLK?+
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.