AIVSX vs XLRE: 1% overlap
American Funds Investment Company of America A and Real Estate Select Sector SPDR Fund share 0.8% 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 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
AIVSX and XLRE hold 5 of the same securities. The ten contributing most to the overlap figure:
| Holding | in AIVSX | in XLRE | Δ |
|---|---|---|---|
| PLD | 0.3% | 9.1% | 8.8% |
| EXR | 0.2% | 3.1% | 2.9% |
| WELL | 0.2% | 11.7% | 11.6% |
| UDR | 0.1% | 1.2% | 1.1% |
| CASH | 0.1% | 0.0% | 0.0% |
Where AIVSX and XLRE 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 | XLRE | Δ |
|---|---|---|---|
| Real Estate | 0.8% | 99.9% | −99.2pp |
| Information Technology | 29.2% | 0.0% | +29.2pp |
| Industrials | 11.8% | 0.0% | +11.8pp |
| Health Care | 11.2% | 0.0% | +11.2pp |
| Consumer Discretionary | 10.0% | 0.0% | +10.0pp |
| Communication Services | 9.9% | 0.0% | +9.9pp |
| Financials | 8.2% | 0.0% | +8.2pp |
| Consumer Staples | 6.4% | 0.0% | +6.4pp |
Δ is AIVSX minus XLRE, 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
99.5% of AIVSX by weight, held in no part of XLRE.
74.8% of XLRE 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 | XLRE | |
|---|---|---|
| Top 10 holdings | 39.5% | 60.6% |
| Positions held | 168 | 34 |
| Cost per $10,000 held, per year | $58 | $8 |
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 XLRE overlap?
AIVSX and XLRE overlap 0.8% by portfolio weight — largely distinct portfolios. They share 5 holdings. The figure comes from current issuer holdings files (AIVSX as of 2026-03-31, XLRE as of 2026-07-23).
How is the overlap between AIVSX and XLRE 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 XLRE 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 XLRE?
That depends on your goals — we state facts, not advice. At 0.8% overlap, each fund still contributes meaningfully distinct exposure.
What does AIVSX own that XLRE doesn't?
AIVSX holds 168 positions and XLRE holds 34; 163 of AIVSX's positions don't appear in XLRE at all, and they are 99.5% of AIVSX by weight.
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Related comparisons
Sources: issuer holdings files, AIVSX as of 2026-03-31, XLRE as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.