PRGFX vs VB: 1% overlap
T. Rowe Price Growth Stock and Vanguard Small-Cap ETF share 0.7% 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 — PRGFX 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
PRGFX and VB hold 4 of the same securities. The ten contributing most to the overlap figure:
| Holding | in PRGFX | in VB | Δ |
|---|---|---|---|
| NTRA | 0.5% | 0.4% | 0.0% |
| IOT | 0.2% | 0.1% | 0.0% |
| HUBS | 0.2% | 0.1% | 0.1% |
| WING | 0.1% | 0.1% | 0.0% |
Where PRGFX and VB 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 | PRGFX | VB | Δ |
|---|---|---|---|
| Information Technology | 48.2% | 16.1% | +32.1pp |
| Industrials | 5.6% | 21.0% | −15.4pp |
| Communication Services | 13.1% | 3.0% | +10.1pp |
| Financials | 5.1% | 12.7% | −7.7pp |
| Real Estate | 0.5% | 7.1% | −6.6pp |
| Health Care | 6.5% | 11.9% | −5.5pp |
| Unclassified | 5.9% | 0.6% | +5.3pp |
| Materials | 0.2% | 5.3% | −5.1pp |
Δ is PRGFX minus VB, 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
95.7% of PRGFX by weight, held in no part of VB.
99.3% of VB by weight, held in no part of PRGFX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| PRGFX | VB | |
|---|---|---|
| Top 10 holdings | 62.8% | 5.6% |
| Positions held | 79 | 1,308 |
| Cost per $10,000 held, per year | $64 | $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 PRGFX and VB overlap?
PRGFX and VB overlap 0.7% by portfolio weight — largely distinct portfolios. They share 4 holdings. The figure comes from current issuer holdings files (PRGFX as of 2026-03-31, VB as of 2026-06-30).
How is the overlap between PRGFX and VB calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If PRGFX holds a stock at 6% and VB 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 PRGFX and VB?
That depends on your goals — we state facts, not advice. At 0.7% overlap, each fund still contributes meaningfully distinct exposure.
What does PRGFX own that VB doesn't?
PRGFX holds 79 positions and VB holds 1,308; 74 of PRGFX's positions don't appear in VB at all, and they are 95.7% of PRGFX by weight.
You probably hold more than two funds
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Related comparisons
Sources: issuer holdings files, PRGFX as of 2026-03-31, VB as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.