MGK vs PRWCX: 28% overlap
Vanguard Mega Cap Growth ETF and T. Rowe Price Capital Appreciation share 28.0% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published about 3 months apart — PRWCX as of 2026-03-31, the rest through 2026-06-30. Each fund is compared using its most recent file, so any trading in between shows up as a difference.
You would hold two tickers and get the diversification of 1.7. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
MGK and PRWCX hold 14 of the same securities. The ten contributing most to the overlap figure:
| Holding | in MGK | in PRWCX | Δ |
|---|---|---|---|
| AMZN | 4.4% | 4.8% | 0.4% |
| MSFT | 7.5% | 4.2% | 3.2% |
| META | 4.1% | 3.7% | 0.4% |
| AAPL | 12.1% | 3.6% | 8.5% |
| NVDA | 13.2% | 3.0% | 10.2% |
| GOOGL | 5.9% | 2.3% | 3.6% |
| AVGO | 4.3% | 1.8% | 2.5% |
| AMD | 3.2% | 1.4% | 1.8% |
| MA | 1.5% | 0.9% | 0.5% |
| LLY | 3.4% | 0.8% | 2.6% |
Where MGK and PRWCX 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 | PRWCX | Δ |
|---|---|---|---|
| Information Technology | 58.6% | 17.8% | +40.8pp |
| Unclassified | 0.0% | 20.3% | −20.3pp |
| Treasuries | 0.0% | 18.2% | −18.2pp |
| Communication Services | 16.2% | 6.7% | +9.5pp |
| Health Care | 4.9% | 12.2% | −7.3pp |
| Utilities | 0.0% | 7.1% | −7.1pp |
| Cash & Other | 0.0% | 5.0% | −5.0pp |
| Consumer Discretionary | 11.2% | 7.2% | +4.0pp |
Δ is MGK minus PRWCX, 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
35.3% of MGK by weight, held in no part of PRWCX.
66.3% of PRWCX 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 | PRWCX | |
|---|---|---|
| Top 10 holdings | 63.5% | 46.0% |
| Positions held | 57 | 151 |
| Cost per $10,000 held, per year | $5 | $72 |
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 PRWCX overlap?
MGK and PRWCX overlap 28.0% by portfolio weight — moderate overlap. They share 14 holdings. The figure comes from current issuer holdings files (MGK as of 2026-06-30, PRWCX as of 2026-03-31).
How is the overlap between MGK and PRWCX 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 PRWCX 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 PRWCX?
That depends on your goals — we state facts, not advice. At 28.0% overlap, each fund still contributes meaningfully distinct exposure.
What does MGK own that PRWCX doesn't?
MGK holds 57 positions and PRWCX holds 151; 43 of MGK's positions don't appear in PRWCX at all, and they are 35.3% of MGK by weight.
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Related comparisons
Sources: issuer holdings files, MGK as of 2026-06-30, PRWCX as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.