ANCFX vs VFIFX: 31% overlap
American Funds Fundamental Investors A and Vanguard Target Retirement 2050 share 31.4% 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, VFIFX 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 VFIFX hold 215 of the same securities. The ten contributing most to the overlap figure:
| Holding | in ANCFX | in VFIFX | Δ |
|---|---|---|---|
| NVDA | 3.6% | 3.3% | 0.3% |
| MSFT | 4.5% | 2.0% | 2.5% |
| AMZN | 2.8% | 1.7% | 1.1% |
| 2330 | 2.2% | 1.6% | 0.6% |
| AAPL | 1.5% | 3.1% | 1.5% |
| GOOGL | 1.6% | 1.5% | 0.1% |
| AVGO | 5.9% | 1.3% | 4.7% |
| GOOG | 3.6% | 1.2% | 2.5% |
| MU | 2.1% | 0.9% | 1.2% |
| META | 2.3% | 0.9% | 1.4% |
Where ANCFX and VFIFX 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 | VFIFX | Δ |
|---|---|---|---|
| Financials | 8.1% | 14.1% | −5.9pp |
| Consumer Staples | 9.4% | 4.0% | +5.4pp |
| Treasuries | 0.0% | 3.6% | −3.6pp |
| Unclassified | 9.3% | 6.3% | +3.0pp |
| Communication Services | 9.0% | 5.9% | +3.0pp |
| Cash and/or Derivatives | 0.0% | 1.9% | −1.9pp |
| Information Technology | 27.8% | 26.1% | +1.8pp |
| Industrials | 12.0% | 10.5% | +1.5pp |
Δ is ANCFX minus VFIFX, 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
7.4% of ANCFX by weight, held in no part of VFIFX.
62.7% of VFIFX 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 | VFIFX | |
|---|---|---|
| Top 10 holdings | 34.1% | 19.3% |
| Positions held | 233 | 6 |
| Cost per $10,000 held, per year | $61 | $8 |
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 VFIFX overlap?
ANCFX and VFIFX overlap 31.4% by portfolio weight — moderate overlap. They share 215 holdings. The figure comes from current issuer holdings files (ANCFX as of 2026-03-31, VFIFX as of 2026-03-31).
How is the overlap between ANCFX and VFIFX 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 VFIFX 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 VFIFX?
That depends on your goals — we state facts, not advice. At 31.4% overlap, each fund still contributes meaningfully distinct exposure.
What does ANCFX own that VFIFX doesn't?
ANCFX holds 233 positions and VFIFX holds 6; 17 of ANCFX's positions don't appear in VFIFX at all, and they are 7.4% of ANCFX by weight.
You probably hold more than two funds
This page compares ANCFX and VFIFX. Paste your whole portfolio — brokerage, 401(k), IRA — and see the overlap across every fund at once, plus what you actually own underneath them and your own Effective Funds number. Free, no account, nothing stored.
X-ray my portfolio — free →Watch ANCFX vs VFIFX
We re-read both funds’ published holdings every weeknight. Leave an address and we'll tell you when what's inside actually changes.
Not sending yet — email alerts are built but switched off, and you'll be among the first when they turn on. No spam, one-click unsubscribe.
Related comparisons
Sources: issuer holdings files, ANCFX as of 2026-03-31, VFIFX as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.