AGTHX vs VFMO: 15% overlap
American Funds Growth Fund of America A and Vanguard U.S. Momentum Factor ETF share 14.9% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published 31 days apart — AGTHX as of 2026-02-28, the rest through 2026-03-31. 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 1.9. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
AGTHX and VFMO hold 78 of the same securities. The ten contributing most to the overlap figure:
| Holding | in AGTHX | in VFMO | Δ |
|---|---|---|---|
| GOOGL | 2.9% | 0.9% | 2.0% |
| AMAT | 0.8% | 0.9% | 0.0% |
| MU | 1.8% | 0.8% | 1.0% |
| APH | 0.7% | 0.9% | 0.1% |
| HCA | 0.6% | 0.7% | 0.1% |
| AVGO | 4.3% | 0.6% | 3.7% |
| GE | 1.1% | 0.6% | 0.5% |
| GOOG | 2.9% | 0.6% | 2.3% |
| KLAC | 0.5% | 1.0% | 0.4% |
| CAT | 0.5% | 0.8% | 0.3% |
Where AGTHX and VFMO 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 | AGTHX | VFMO | Δ |
|---|---|---|---|
| Industrials | 9.8% | 24.4% | −14.6pp |
| Information Technology | 30.6% | 17.0% | +13.6pp |
| Health Care | 11.0% | 22.3% | −11.3pp |
| Communication Services | 13.2% | 3.4% | +9.8pp |
| Unclassified | 7.6% | 0.9% | +6.7pp |
| Energy | 1.9% | 7.7% | −5.8pp |
| Consumer Discretionary | 12.7% | 7.8% | +4.9pp |
| Materials | 1.5% | 6.2% | −4.7pp |
Δ is AGTHX minus VFMO, 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
65.5% of AGTHX by weight, held in no part of VFMO.
71.2% of VFMO by weight, held in no part of AGTHX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| AGTHX | VFMO | |
|---|---|---|
| Top 10 holdings | 36.7% | 10.2% |
| Positions held | 309 | 672 |
| Cost per $10,000 held, per year | $61 | $13 |
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 AGTHX and VFMO overlap?
AGTHX and VFMO overlap 14.9% by portfolio weight — largely distinct portfolios. They share 78 holdings. The figure comes from current issuer holdings files (AGTHX as of 2026-02-28, VFMO as of 2026-03-31).
How is the overlap between AGTHX and VFMO calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If AGTHX holds a stock at 6% and VFMO 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 AGTHX and VFMO?
That depends on your goals — we state facts, not advice. At 14.9% overlap, each fund still contributes meaningfully distinct exposure.
What does AGTHX own that VFMO doesn't?
AGTHX holds 309 positions and VFMO holds 672; 230 of AGTHX's positions don't appear in VFMO at all, and they are 65.5% of AGTHX by weight.
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Related comparisons
Sources: issuer holdings files, AGTHX as of 2026-02-28, VFMO as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.