AGTHX vs QQQM: 44% overlap
American Funds Growth Fund of America A and Invesco NASDAQ 100 ETF share 44.0% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
You would hold two tickers and get the diversification of 1.6. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
AGTHX and QQQM hold 58 of the same securities. The ten contributing most to the overlap figure:
| Holding | in AGTHX | in QQQM | Δ |
|---|---|---|---|
| NVDA | 6.1% | 8.4% | 2.3% |
| MSFT | 4.0% | 5.7% | 1.6% |
| META | 4.2% | 3.7% | 0.5% |
| AVGO | 4.3% | 2.9% | 1.3% |
| GOOG | 2.9% | 3.3% | 0.4% |
| GOOGL | 2.9% | 3.5% | 0.6% |
| AMZN | 2.9% | 4.4% | 1.5% |
| TSLA | 2.6% | 3.9% | 1.3% |
| AAPL | 1.8% | 7.6% | 5.8% |
| MU | 1.8% | 2.5% | 0.7% |
Where AGTHX and QQQM 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 | QQQM | Δ |
|---|---|---|---|
| Information Technology | 30.6% | 48.9% | −18.4pp |
| Industrials | 9.8% | 3.0% | +6.9pp |
| Financials | 6.5% | 0.2% | +6.3pp |
| Consumer Staples | 2.4% | 8.5% | −6.1pp |
| Health Care | 11.0% | 5.2% | +5.7pp |
| Unclassified | 7.6% | 2.7% | +4.9pp |
| Communication Services | 13.2% | 15.6% | −2.4pp |
| Energy | 1.9% | 0.6% | +1.3pp |
Δ is AGTHX minus QQQM, 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
49.7% of AGTHX by weight, held in no part of QQQM.
15.9% of QQQM 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 | QQQM | |
|---|---|---|
| Top 10 holdings | 36.7% | 46.7% |
| Positions held | 309 | 103 |
| Cost per $10,000 held, per year | $61 | $15 |
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 QQQM overlap?
AGTHX and QQQM overlap 44.0% by portfolio weight — moderate overlap. They share 58 holdings. The figure comes from current issuer holdings files (AGTHX as of 2026-02-28, QQQM as of 2026-02-28).
How is the overlap between AGTHX and QQQM 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 QQQM 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 QQQM?
That depends on your goals — we state facts, not advice. At 44.0% overlap, each fund still contributes meaningfully distinct exposure.
What does AGTHX own that QQQM doesn't?
AGTHX holds 309 positions and QQQM holds 103; 250 of AGTHX's positions don't appear in QQQM at all, and they are 49.7% of AGTHX by weight.
You probably hold more than two funds
This page compares AGTHX and QQQM. 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 AGTHX vs QQQM
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, AGTHX as of 2026-02-28, QQQM as of 2026-02-28. Weights are fractions of each fund. Diagnostics, not advice.