IVW vs SWTSX: 58% overlap
iShares S&P 500 Growth ETF and Schwab Total Stock Market Index share 57.6% 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 3 months apart — SWTSX as of 2026-04-30, 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 1.4. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
IVW and SWTSX hold 137 of the same securities. The ten contributing most to the overlap figure:
| Holding | in IVW | in SWTSX | Δ |
|---|---|---|---|
| NVDA | 14.7% | 6.9% | 7.7% |
| AAPL | 6.9% | 5.7% | 1.2% |
| MSFT | 8.2% | 4.3% | 3.9% |
| AMZN | 3.5% | 3.7% | 0.2% |
| GOOGL | 5.4% | 3.2% | 2.2% |
| AVGO | 5.4% | 2.8% | 2.6% |
| GOOG | 4.4% | 2.6% | 1.8% |
| META | 3.9% | 1.9% | 1.9% |
| TSLA | 1.6% | 1.5% | 0.1% |
| BRK-B | 2.6% | 1.2% | 1.4% |
Where IVW and SWTSX 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 | IVW | SWTSX | Δ |
|---|---|---|---|
| Information Technology | 52.5% | 32.3% | +20.3pp |
| Communication Services | 14.7% | 10.1% | +4.6pp |
| Energy | 0.0% | 3.5% | −3.5pp |
| Consumer Staples | 1.2% | 4.6% | −3.5pp |
| Unclassified | 0.0% | 3.4% | −3.4pp |
| Industrials | 6.6% | 9.4% | −2.7pp |
| Financials | 9.2% | 11.9% | −2.7pp |
| Health Care | 6.3% | 8.7% | −2.4pp |
Δ is IVW minus SWTSX, 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
1.3% of IVW by weight, held in no part of SWTSX.
41.6% of SWTSX by weight, held in no part of IVW.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| IVW | SWTSX | |
|---|---|---|
| Top 10 holdings | 58.2% | 33.9% |
| Positions held | 149 | 2,939 |
| Cost per $10,000 held, per year | $18 | $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 IVW and SWTSX overlap?
IVW and SWTSX overlap 57.6% by portfolio weight — substantial duplication if you hold both. They share 137 holdings. The figure comes from current issuer holdings files (IVW as of 2026-07-23, SWTSX as of 2026-04-30).
How is the overlap between IVW and SWTSX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If IVW holds a stock at 6% and SWTSX 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 IVW and SWTSX?
That depends on your goals — we state facts, not advice. At 57.6% overlap, each fund still contributes meaningfully distinct exposure.
What does IVW own that SWTSX doesn't?
IVW holds 149 positions and SWTSX holds 2,939; 11 of IVW's positions don't appear in SWTSX at all, and they are 1.3% of IVW by weight.
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Related comparisons
Sources: issuer holdings files, IVW as of 2026-07-23, SWTSX as of 2026-04-30. Weights are fractions of each fund. Diagnostics, not advice.