AIVSX vs IVW: 48% overlap
American Funds Investment Company of America A and iShares S&P 500 Growth ETF share 47.5% 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 — AIVSX as of 2026-03-31, the rest through 2026-07-23. 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 1.5. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
AIVSX and IVW hold 57 of the same securities. The ten contributing most to the overlap figure:
| Holding | in AIVSX | in IVW | Δ |
|---|---|---|---|
| NVDA | 6.5% | 14.7% | 8.1% |
| MSFT | 5.7% | 8.2% | 2.6% |
| AVGO | 6.1% | 5.4% | 0.7% |
| AMZN | 4.7% | 3.5% | 1.2% |
| LLY | 3.4% | 2.7% | 0.6% |
| META | 2.6% | 3.9% | 1.2% |
| GOOGL | 2.5% | 5.4% | 2.9% |
| AAPL | 2.2% | 6.9% | 4.6% |
| GOOG | 2.1% | 4.4% | 2.2% |
| AMAT | 1.3% | 1.3% | 0.0% |
Where AIVSX and IVW 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 | AIVSX | IVW | Δ |
|---|---|---|---|
| Information Technology | 29.2% | 52.5% | −23.4pp |
| Unclassified | 5.5% | 0.0% | +5.5pp |
| Consumer Staples | 6.4% | 1.2% | +5.2pp |
| Industrials | 11.8% | 6.6% | +5.2pp |
| Health Care | 11.2% | 6.3% | +5.0pp |
| Communication Services | 9.9% | 14.7% | −4.8pp |
| Materials | 3.1% | 0.3% | +2.8pp |
| Consumer Discretionary | 10.0% | 8.0% | +2.0pp |
Δ is AIVSX minus IVW, 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
39.1% of AIVSX by weight, held in no part of IVW.
17.3% of IVW by weight, held in no part of AIVSX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| AIVSX | IVW | |
|---|---|---|
| Top 10 holdings | 39.5% | 58.2% |
| Positions held | 168 | 149 |
| Cost per $10,000 held, per year | $58 | $18 |
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 AIVSX and IVW overlap?
AIVSX and IVW overlap 47.5% by portfolio weight — moderate overlap. They share 57 holdings. The figure comes from current issuer holdings files (AIVSX as of 2026-03-31, IVW as of 2026-07-23).
How is the overlap between AIVSX and IVW calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If AIVSX holds a stock at 6% and IVW 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 AIVSX and IVW?
That depends on your goals — we state facts, not advice. At 47.5% overlap, each fund still contributes meaningfully distinct exposure.
What does AIVSX own that IVW doesn't?
AIVSX holds 168 positions and IVW holds 149; 111 of AIVSX's positions don't appear in IVW at all, and they are 39.1% of AIVSX by weight.
You probably hold more than two funds
This page compares AIVSX and IVW. 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 AIVSX vs IVW
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, AIVSX as of 2026-03-31, IVW as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.