AIVSX vs VWO: 2% overlap
American Funds Investment Company of America A and Vanguard FTSE Emerging Markets ETF share 1.8% 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 — AIVSX 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
AIVSX and VWO hold 7 of the same securities. The ten contributing most to the overlap figure:
| Holding | in AIVSX | in VWO | Δ |
|---|---|---|---|
| 2330 | 1.6% | 15.7% | 14.1% |
| CASH | 0.1% | 4.2% | 4.1% |
| HAL | 0.7% | 0.1% | 0.6% |
| TSM | 0.4% | 0.0% | 0.4% |
| 6098 | 0.3% | 0.0% | 0.3% |
| SRE | 0.1% | 0.0% | 0.1% |
| TRP | 0.3% | 0.0% | 0.3% |
Where AIVSX and VWO 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 | VWO | Δ |
|---|---|---|---|
| Financials | 8.2% | 17.2% | −9.0pp |
| Health Care | 11.2% | 2.8% | +8.4pp |
| Industrials | 11.8% | 5.9% | +6.0pp |
| Communication Services | 9.9% | 5.4% | +4.5pp |
| Cash and/or Derivatives | 0.1% | 4.2% | −4.1pp |
| Unclassified | 5.5% | 9.3% | −3.8pp |
| Consumer Staples | 6.4% | 2.9% | +3.5pp |
| Materials | 3.1% | 5.7% | −2.6pp |
Δ is AIVSX minus VWO, 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
97.0% of AIVSX by weight, held in no part of VWO.
80.0% of VWO 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 | VWO | |
|---|---|---|
| Top 10 holdings | 39.5% | 30.3% |
| Positions held | 168 | 5,003 |
| Cost per $10,000 held, per year | $58 | $6 |
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 VWO overlap?
AIVSX and VWO overlap 1.8% by portfolio weight — largely distinct portfolios. They share 7 holdings. The figure comes from current issuer holdings files (AIVSX as of 2026-03-31, VWO as of 2026-06-30).
How is the overlap between AIVSX and VWO 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 VWO 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 VWO?
That depends on your goals — we state facts, not advice. At 1.8% overlap, each fund still contributes meaningfully distinct exposure.
What does AIVSX own that VWO doesn't?
AIVSX holds 168 positions and VWO holds 5,003; 161 of AIVSX's positions don't appear in VWO at all, and they are 97.0% of AIVSX by weight.
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Related comparisons
Sources: issuer holdings files, AIVSX as of 2026-03-31, VWO as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.