QUAL vs VO Overlap
QUAL is an equity ETF from IShares, while VO is a mid-cap U.S. equity ETF from Vanguard. QUAL and VO show limited overlap, with an estimated weighted overlap of 10.94%. They share 51 holdings in the loaded dataset, led by MSI, GWW, and MPWR.
Served from cache.
Quick Answer
QUAL is an equity ETF from IShares, while VO is a mid-cap U.S. equity ETF from Vanguard. QUAL and VO show limited overlap, with an estimated weighted overlap of 10.94%. They share 51 holdings in the loaded dataset, led by MSI, GWW, and MPWR.
- 10.94% weighted overlap across 51 shared holdings.
- The top three shared holdings explain 13.53% of the measured overlap.
- QUAL and VO are closer in breadth than a broad-vs-niche ETF pair.
- The overlap is mostly explained by the top shared positions rather than sector labels alone.
- Holding both can still add materially different exposure.
Data Freshness
- QUAL holdings
- Mar 12, 2026
- VO 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
QUAL is an equity ETF from IShares, while VO is a mid-cap U.S. equity ETF from Vanguard. QUAL and VO do not own much of the same portfolio weight. That usually means you are combining different parts of the market, with only a small amount of duplication through names like MSI, GWW, and MPWR.
How They Differ
QUAL is an equity ETF from IShares, while VO is a mid-cap U.S. equity ETF from Vanguard. Neither fund clearly dominates on breadth, so the practical difference is more about weighting, index construction, and cost. VO has the lower expense ratio, while QUAL 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 13.53% 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
Because QUAL and VO are closer in breadth, the better fit usually comes down to index methodology, issuer preference, and cost. VO has the lower expense ratio, while QUAL charges more for its exposure.
Overlap Driver Snapshot
Concentration
The top three shared holdings explain 13.53% 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 QUAL and VO.
| Holding | Name | QUAL Wt. | VO Wt. | Overlap |
|---|---|---|---|---|
| MSI | MOTOROLA SOLUTIONS INC | 0.53% | 0.71% | 0.53% |
| GWW | WW GRAINGER INC | 0.48% | 0.52% | 0.48% |
| MPWR | MONOLITHIC POWER SYSTEMS INC | 0.47% | 0.55% | 0.47% |
| NEM | NEWMONT | 0.47% | 1.31% | 0.47% |
| FAST | FASTENAL | 0.47% | 0.53% | 0.47% |
| DHI | D R HORTON INC | 0.74% | 0.42% | 0.42% |
| GRMN | GARMIN LTD | 0.87% | 0.35% | 0.35% |
| CTAS | CINTAS CORP | 0.62% | 0.35% | 0.35% |
| FANG | DIAMONDBACK ENERGY INC | 0.59% | 0.33% | 0.33% |
| SPG | SIMON PROPERTY GROUP REIT INC | 0.35% | 0.32% | 0.32% |
Why These ETFs Overlap
QUAL is an equity ETF from IShares, while VO is a mid-cap U.S. equity ETF from Vanguard. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are MSI, GWW, and MPWR, which appear in both portfolios and push the overlap score higher.
Holding both QUAL and VO can make sense if you want exposure to different sleeves of the market. The overlap is small enough that both funds may still improve diversification.
Related Comparisons
Frequently Asked Questions About QUAL and VO
What is the overlap between QUAL and VO?+
How many holdings do QUAL and VO share?+
Is the QUAL and VO overlap high?+
Why do QUAL and VO overlap?+
Which ETF is broader, QUAL or VO?+
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.