SWTSX vs VGT: 32% overlap
Schwab Total Stock Market Index and Vanguard Information Technology ETF share 32.3% 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 — SWTSX as of 2026-04-30, 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 1.7. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
SWTSX and VGT hold 294 of the same securities. The ten contributing most to the overlap figure:
| Holding | in SWTSX | in VGT | Δ |
|---|---|---|---|
| NVDA | 6.9% | 16.1% | 9.2% |
| AAPL | 5.7% | 14.3% | 8.6% |
| MSFT | 4.3% | 8.3% | 4.0% |
| AVGO | 2.8% | 3.8% | 1.0% |
| MU | 0.8% | 5.0% | 4.2% |
| AMD | 0.8% | 3.6% | 2.8% |
| INTC | 0.6% | 2.4% | 1.8% |
| CSCO | 0.5% | 1.8% | 1.3% |
| LRCX | 0.5% | 2.1% | 1.7% |
| PLTR | 0.5% | 1.0% | 0.6% |
Where SWTSX and VGT 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 | SWTSX | VGT | Δ |
|---|---|---|---|
| Information Technology | 32.3% | 99.5% | −67.2pp |
| Financials | 11.9% | 0.0% | +11.8pp |
| Communication Services | 10.1% | 0.0% | +10.1pp |
| Consumer Discretionary | 9.6% | 0.0% | +9.6pp |
| Industrials | 9.4% | 0.0% | +9.4pp |
| Health Care | 8.7% | 0.0% | +8.7pp |
| Consumer Staples | 4.6% | 0.1% | +4.6pp |
| Energy | 3.5% | 0.0% | +3.5pp |
Δ is SWTSX minus VGT, 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
67.4% of SWTSX by weight, held in no part of VGT.
2.8% of VGT by weight, held in no part of SWTSX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| SWTSX | VGT | |
|---|---|---|
| Top 10 holdings | 33.9% | 59.9% |
| Positions held | 2,939 | 322 |
| Cost per $10,000 held, per year | $3 | $9 |
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 SWTSX and VGT overlap?
SWTSX and VGT overlap 32.3% by portfolio weight — moderate overlap. They share 294 holdings. The figure comes from current issuer holdings files (SWTSX as of 2026-04-30, VGT as of 2026-06-30).
How is the overlap between SWTSX and VGT calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If SWTSX holds a stock at 6% and VGT 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 SWTSX and VGT?
That depends on your goals — we state facts, not advice. At 32.3% overlap, each fund still contributes meaningfully distinct exposure.
What does SWTSX own that VGT doesn't?
SWTSX holds 2,939 positions and VGT holds 322; 2,644 of SWTSX's positions don't appear in VGT at all, and they are 67.4% of SWTSX by weight.
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Related comparisons
Sources: issuer holdings files, SWTSX as of 2026-04-30, VGT as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.