AGTHX vs VOOV: 24% overlap
American Funds Growth Fund of America A and Vanguard S&P 500 Value ETF share 23.5% 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 4 months apart — AGTHX as of 2026-02-28, 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 1.8. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
AGTHX and VOOV hold 133 of the same securities. The ten contributing most to the overlap figure:
| Holding | in AGTHX | in VOOV | Δ |
|---|---|---|---|
| AMZN | 2.9% | 3.8% | 0.9% |
| AAPL | 1.8% | 7.3% | 5.5% |
| TSLA | 2.6% | 1.6% | 1.0% |
| V | 0.8% | 0.9% | 0.1% |
| GE | 1.1% | 0.6% | 0.5% |
| INTC | 0.5% | 2.3% | 1.8% |
| COST | 0.5% | 1.4% | 0.9% |
| MA | 0.9% | 0.5% | 0.4% |
| VRTX | 2.1% | 0.4% | 1.7% |
| PM | 0.9% | 0.4% | 0.5% |
Where AGTHX and VOOV 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 | VOOV | Δ |
|---|---|---|---|
| Communication Services | 13.2% | 2.9% | +10.3pp |
| Information Technology | 30.6% | 20.5% | +10.1pp |
| Financials | 6.5% | 15.3% | −8.8pp |
| Unclassified | 7.6% | 0.0% | +7.6pp |
| Consumer Staples | 2.4% | 8.8% | −6.4pp |
| Energy | 1.9% | 6.6% | −4.7pp |
| Utilities | 0.5% | 4.4% | −3.9pp |
| Real Estate | 0.6% | 3.3% | −2.7pp |
Δ is AGTHX minus VOOV, 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
66.0% of AGTHX by weight, held in no part of VOOV.
42.3% of VOOV 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 | VOOV | |
|---|---|---|
| Top 10 holdings | 36.7% | 23.8% |
| Positions held | 309 | 438 |
| Cost per $10,000 held, per year | $61 | $7 |
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 VOOV overlap?
AGTHX and VOOV overlap 23.5% by portfolio weight — moderate overlap. They share 133 holdings. The figure comes from current issuer holdings files (AGTHX as of 2026-02-28, VOOV as of 2026-06-30).
How is the overlap between AGTHX and VOOV 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 VOOV 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 VOOV?
That depends on your goals — we state facts, not advice. At 23.5% overlap, each fund still contributes meaningfully distinct exposure.
What does AGTHX own that VOOV doesn't?
AGTHX holds 309 positions and VOOV holds 438; 175 of AGTHX's positions don't appear in VOOV at all, and they are 66.0% of AGTHX by weight.
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Related comparisons
Sources: issuer holdings files, AGTHX as of 2026-02-28, VOOV as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.