SCHX vs SOXX: 18% overlap
Schwab U.S. Large-Cap ETF and iShares Semiconductor ETF share 17.6% 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 2 months apart — SCHX as of 2026-05-31, 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 1.8. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
SCHX and SOXX hold 20 of the same securities. The ten contributing most to the overlap figure:
| Holding | in SCHX | in SOXX | Δ |
|---|---|---|---|
| NVDA | 7.5% | 8.3% | 0.8% |
| AVGO | 3.1% | 7.3% | 4.2% |
| MU | 1.6% | 8.5% | 6.9% |
| AMD | 1.2% | 8.7% | 7.5% |
| INTC | 0.8% | 5.3% | 4.5% |
| LRCX | 0.6% | 4.2% | 3.6% |
| AMAT | 0.5% | 5.2% | 4.7% |
| TXN | 0.4% | 3.9% | 3.5% |
| QCOM | 0.4% | 2.8% | 2.5% |
| KLAC | 0.4% | 4.8% | 4.4% |
Where SCHX and SOXX 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 | SCHX | SOXX | Δ |
|---|---|---|---|
| Information Technology | 36.8% | 99.9% | −63.1pp |
| Financials | 10.9% | 0.0% | +10.9pp |
| Communication Services | 10.1% | 0.0% | +10.1pp |
| Consumer Discretionary | 9.4% | 0.0% | +9.4pp |
| Industrials | 8.2% | 0.0% | +8.2pp |
| Health Care | 8.1% | 0.0% | +8.1pp |
| Consumer Staples | 4.4% | 0.0% | +4.4pp |
| Unclassified | 3.4% | 0.0% | +3.4pp |
Δ is SCHX minus SOXX, 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
82.3% of SCHX by weight, held in no part of SOXX.
18.3% of SOXX by weight, held in no part of SCHX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| SCHX | SOXX | |
|---|---|---|
| Top 10 holdings | 37.3% | 60.9% |
| Positions held | 750 | 32 |
| Cost per $10,000 held, per year | $3 | $34 |
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 SCHX and SOXX overlap?
SCHX and SOXX overlap 17.6% by portfolio weight — moderate overlap. They share 20 holdings. The figure comes from current issuer holdings files (SCHX as of 2026-05-31, SOXX as of 2026-07-23).
How is the overlap between SCHX and SOXX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If SCHX holds a stock at 6% and SOXX 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 SCHX and SOXX?
That depends on your goals — we state facts, not advice. At 17.6% overlap, each fund still contributes meaningfully distinct exposure.
What does SCHX own that SOXX doesn't?
SCHX holds 750 positions and SOXX holds 32; 729 of SCHX's positions don't appear in SOXX at all, and they are 82.3% of SCHX by weight.
You probably hold more than two funds
This page compares SCHX and SOXX. 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 SCHX vs SOXX
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, SCHX as of 2026-05-31, SOXX as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.