ANCFX vs VUG: 35% overlap
American Funds Fundamental Investors A and Vanguard Growth ETF share 34.6% 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 — ANCFX 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
ANCFX and VUG hold 52 of the same securities. The ten contributing most to the overlap figure:
| Holding | in ANCFX | in VUG | Δ |
|---|---|---|---|
| MSFT | 4.5% | 7.6% | 3.1% |
| AVGO | 5.9% | 4.3% | 1.7% |
| GOOG | 3.6% | 4.5% | 0.9% |
| NVDA | 3.6% | 12.6% | 9.0% |
| AMZN | 2.8% | 4.5% | 1.7% |
| META | 2.3% | 3.4% | 1.1% |
| GOOGL | 1.6% | 5.7% | 4.1% |
| AAPL | 1.5% | 11.6% | 10.1% |
| V | 1.2% | 1.5% | 0.3% |
| KLAC | 1.2% | 1.1% | 0.1% |
Where ANCFX and VUG 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 | ANCFX | VUG | Δ |
|---|---|---|---|
| Information Technology | 27.8% | 56.0% | −28.2pp |
| Unclassified | 9.3% | 0.1% | +9.2pp |
| Consumer Staples | 9.4% | 1.4% | +8.0pp |
| Industrials | 12.0% | 5.0% | +7.0pp |
| Communication Services | 9.0% | 15.3% | −6.4pp |
| Financials | 8.1% | 3.9% | +4.2pp |
| Consumer Discretionary | 8.9% | 11.4% | −2.5pp |
| Utilities | 2.1% | 0.0% | +2.1pp |
Δ is ANCFX minus VUG, 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
57.0% of ANCFX by weight, held in no part of VUG.
23.0% of VUG by weight, held in no part of ANCFX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| ANCFX | VUG | |
|---|---|---|
| Top 10 holdings | 34.1% | 60.3% |
| Positions held | 233 | 147 |
| Cost per $10,000 held, per year | $61 | $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 ANCFX and VUG overlap?
ANCFX and VUG overlap 34.6% by portfolio weight — moderate overlap. They share 52 holdings. The figure comes from current issuer holdings files (ANCFX as of 2026-03-31, VUG as of 2026-06-30).
How is the overlap between ANCFX and VUG calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If ANCFX holds a stock at 6% and VUG 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 ANCFX and VUG?
That depends on your goals — we state facts, not advice. At 34.6% overlap, each fund still contributes meaningfully distinct exposure.
What does ANCFX own that VUG doesn't?
ANCFX holds 233 positions and VUG holds 147; 180 of ANCFX's positions don't appear in VUG at all, and they are 57.0% of ANCFX by weight.
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Related comparisons
Sources: issuer holdings files, ANCFX as of 2026-03-31, VUG as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.