MGK vs VTI: 45% overlap
Vanguard Mega Cap Growth ETF and Vanguard Total Stock Market ETF share 45.5% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
You would hold two tickers and get the diversification of 1.5. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
MGK and VTI hold 57 of the same securities. The ten contributing most to the overlap figure:
| Holding | in MGK | in VTI | Δ |
|---|---|---|---|
| NVDA | 13.2% | 6.3% | 6.9% |
| AAPL | 12.1% | 5.8% | 6.3% |
| MSFT | 7.5% | 3.8% | 3.7% |
| AMZN | 4.4% | 3.2% | 1.3% |
| GOOGL | 5.9% | 2.9% | 3.0% |
| AVGO | 4.3% | 2.5% | 1.8% |
| GOOG | 4.6% | 2.3% | 2.4% |
| META | 4.1% | 1.7% | 2.4% |
| TSLA | 3.9% | 1.6% | 2.3% |
| LLY | 3.4% | 1.4% | 2.0% |
Where MGK and VTI differ
Sector weights as a share of each fund, ordered by the size of the gap rather than the size of the sector — two funds that overlap heavily still usually diverge somewhere.
| Sector | MGK | VTI | Δ |
|---|---|---|---|
| Information Technology | 58.6% | 35.2% | +23.4pp |
| Financials | 4.0% | 11.9% | −7.9pp |
| Industrials | 2.6% | 10.4% | −7.8pp |
| Communication Services | 16.2% | 9.1% | +7.2pp |
| Health Care | 4.9% | 9.5% | −4.6pp |
| Consumer Staples | 0.4% | 4.3% | −3.9pp |
| Energy | 0.0% | 3.1% | −3.1pp |
| Utilities | 0.0% | 2.2% | −2.2pp |
Δ is MGK minus VTI, in percentage points. Sector data is not published by every issuer, so “Unclassified” is a real category rather than a gap in the table.
What each fund holds alone
0.0% of MGK by weight, held in no part of VTI.
54.4% of VTI by weight, held in no part of MGK.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| MGK | VTI | |
|---|---|---|
| Top 10 holdings | 63.5% | 31.9% |
| Positions held | 57 | 3,495 |
| Cost per $10,000 held, per year | $5 | $3 |
Cost is the expense ratio applied to $10,000; it excludes any brokerage commission, bid-ask spread or tax consequence. Figures are facts about the funds, not a suggestion about which to hold.
Frequently asked
How much do MGK and VTI overlap?
MGK and VTI overlap 45.5% by portfolio weight — moderate overlap. They share 57 holdings. The figure comes from current issuer holdings files (MGK as of 2026-06-30, VTI as of 2026-06-30).
How is the overlap between MGK and VTI calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If MGK holds a stock at 6% and VTI holds the same stock at 4%, 4% counts as shared. The result is bounded between 0% and 100%, and it is computed after looking through any fund-of-funds to the underlying holdings.
Is it redundant to hold both MGK and VTI?
That depends on your goals — we state facts, not advice. At 45.5% overlap, each fund still contributes meaningfully distinct exposure.
What does MGK own that VTI doesn't?
MGK holds 57 positions and VTI holds 3,495; 0 of MGK's positions don't appear in VTI at all, and they are 0.0% of MGK by weight.
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Related comparisons
Sources: issuer holdings files, MGK as of 2026-06-30, VTI as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.