MGK is a U.S. growth equity ETF from Vanguard, while SPY is a U.S. large-cap core ETF from SPDR. MGK and SPY show heavy overlap, with an estimated weighted overlap of 50.2%. They share 58 holdings in the loaded dataset, led by NVDA, AAPL, and MSFT.
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MGK is a U.S. growth equity ETF from Vanguard, while SPY is a U.S. large-cap core ETF from SPDR. MGK and SPY show heavy overlap, with an estimated weighted overlap of 50.2%. They share 58 holdings in the loaded dataset, led by NVDA, AAPL, and MSFT.
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MGK is a U.S. growth equity ETF from Vanguard, while SPY is a U.S. large-cap core ETF from SPDR. MGK and SPY share a large chunk of the same portfolio weight. The overlap is driven by positions like NVDA, AAPL, and MSFT, so owning both may not diversify your stock exposure as much as the fund names suggest.
MGK is a U.S. growth equity ETF from Vanguard, while SPY is a U.S. large-cap core ETF from SPDR. SPY is the broader fund, while MGK is the more targeted sleeve. MGK has the lower expense ratio, while SPY charges more for its exposure.
The overlap is driven by a relatively small set of large shared positions. The top three shared holdings account for 40.4% of the score, which means the result is heavily influenced by the biggest common weights rather than a long tail of tiny positions.
If you want the broader portfolio building block, SPY is usually the wider choice. If you want the more focused tilt, MGK is the narrower expression. MGK has the lower expense ratio, while SPY charges more for its exposure.
Concentration
The top three shared holdings explain 40.4% 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.
These are the holdings contributing the most to the overlap score between MGK and SPY.
| Holding | Name | MGK Wt. | SPY Wt. | Overlap |
|---|---|---|---|---|
| NVDA | NVIDIA Corp | 13.75% | 8.14% | 8.14% |
| AAPL | Apple Inc | 12.60% | 6.66% | 6.66% |
| MSFT | Microsoft Corp | 9.01% | 5.48% | 5.48% |
| AMZN | Amazon.com Inc | 4.59% | 3.92% | 3.92% |
| GOOGL | Alphabet Inc | 5.51% | 3.02% | 3.02% |
| AVGO | Broadcom Inc | 4.40% | 2.95% | 2.95% |
| GOOG | Alphabet Inc | 4.37% | 2.43% | 2.43% |
| META | Meta Platforms Inc | 4.17% | 1.91% | 1.91% |
| LLY | Eli Lilly & Co | 3.17% | 1.45% | 1.45% |
| TSLA | Tesla Inc | 4.18% | 1.38% | 1.38% |
MGK is a U.S. growth equity ETF from Vanguard, while SPY is a U.S. large-cap core ETF from SPDR. The overlap exists because both funds allocate meaningful weight to the same holdings. In this dataset, the biggest shared drivers are NVDA, AAPL, and MSFT, which appear in both portfolios and push the overlap score higher.
Holding both MGK and SPY may add less diversification than you expect. Many investors would choose the ETF that best matches their goal and avoid paying for duplicate exposure.
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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.