SOXX vs VEA: 3% overlap
iShares Semiconductor ETF and Vanguard FTSE Developed Markets ETF share 2.5% 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
SOXX and VEA hold 5 of the same securities. The ten contributing most to the overlap figure:
| Holding | in SOXX | in VEA | Δ |
|---|---|---|---|
| ASML | 2.4% | 2.3% | 0.1% |
| CASH | 0.1% | 1.4% | 1.2% |
| NVMI | 0.8% | 0.0% | 0.7% |
| ASX | 1.2% | 0.0% | 1.2% |
| STM | 0.7% | 0.0% | 0.7% |
Where SOXX and VEA 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 | SOXX | VEA | Δ |
|---|---|---|---|
| Information Technology | 99.9% | 17.1% | +82.8pp |
| Financials | 0.0% | 20.7% | −20.7pp |
| Industrials | 0.0% | 16.9% | −16.9pp |
| Unclassified | 0.0% | 8.9% | −8.9pp |
| Consumer Discretionary | 0.0% | 7.3% | −7.3pp |
| Health Care | 0.0% | 6.2% | −6.2pp |
| Consumer Staples | 0.0% | 5.6% | −5.6pp |
| Materials | 0.0% | 5.1% | −5.1pp |
Δ is SOXX minus VEA, 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
94.8% of SOXX by weight, held in no part of VEA.
96.2% of VEA by weight, held in no part of SOXX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| SOXX | VEA | |
|---|---|---|
| Top 10 holdings | 60.9% | 15.2% |
| Positions held | 32 | 3,792 |
| Cost per $10,000 held, per year | $34 | $3 |
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 SOXX and VEA overlap?
SOXX and VEA overlap 2.5% by portfolio weight — largely distinct portfolios. They share 5 holdings. The figure comes from current issuer holdings files (SOXX as of 2026-07-23, VEA as of 2026-06-30).
How is the overlap between SOXX and VEA calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If SOXX holds a stock at 6% and VEA 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 SOXX and VEA?
That depends on your goals — we state facts, not advice. At 2.5% overlap, each fund still contributes meaningfully distinct exposure.
What does SOXX own that VEA doesn't?
SOXX holds 32 positions and VEA holds 3,792; 26 of SOXX's positions don't appear in VEA at all, and they are 94.8% of SOXX by weight.
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Related comparisons
Sources: issuer holdings files, SOXX as of 2026-07-23, VEA as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.