SWPPX vs VONG: 55% overlap
Schwab S&P 500 Index and Vanguard Russell 1000 Growth ETF share 54.6% 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 — SWPPX 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 1.5. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
SWPPX and VONG hold 173 of the same securities. The ten contributing most to the overlap figure:
| Holding | in SWPPX | in VONG | Δ |
|---|---|---|---|
| NVDA | 7.8% | 13.8% | 6.0% |
| AAPL | 6.4% | 6.7% | 0.3% |
| MSFT | 4.9% | 4.1% | 0.8% |
| GOOGL | 3.6% | 6.2% | 2.6% |
| AVGO | 3.2% | 5.2% | 2.0% |
| GOOG | 2.9% | 5.0% | 2.1% |
| META | 2.2% | 3.0% | 0.8% |
| TSLA | 1.7% | 3.6% | 1.9% |
| LLY | 1.2% | 2.8% | 1.6% |
| MU | 0.9% | 3.9% | 2.9% |
Where SWPPX and VONG 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 | SWPPX | VONG | Δ |
|---|---|---|---|
| Information Technology | 34.2% | 54.3% | −20.0pp |
| Financials | 11.5% | 4.3% | +7.3pp |
| Communication Services | 11.0% | 16.1% | −5.1pp |
| Consumer Staples | 4.9% | 1.3% | +3.6pp |
| Energy | 3.4% | 0.4% | +3.0pp |
| Health Care | 8.3% | 5.4% | +2.9pp |
| Unclassified | 2.8% | 0.0% | +2.8pp |
| Utilities | 2.3% | 0.3% | +2.0pp |
Δ is SWPPX minus VONG, 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
34.2% of SWPPX by weight, held in no part of VONG.
7.7% of VONG by weight, held in no part of SWPPX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| SWPPX | VONG | |
|---|---|---|
| Top 10 holdings | 38.3% | 54.3% |
| Positions held | 503 | 370 |
| Cost per $10,000 held, per year | $2 | $6 |
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 SWPPX and VONG overlap?
SWPPX and VONG overlap 54.6% by portfolio weight — substantial duplication if you hold both. They share 173 holdings. The figure comes from current issuer holdings files (SWPPX as of 2026-04-30, VONG as of 2026-06-30).
How is the overlap between SWPPX and VONG calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If SWPPX holds a stock at 6% and VONG 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 SWPPX and VONG?
That depends on your goals — we state facts, not advice. At 54.6% overlap, each fund still contributes meaningfully distinct exposure.
What does SWPPX own that VONG doesn't?
SWPPX holds 503 positions and VONG holds 370; 329 of SWPPX's positions don't appear in VONG at all, and they are 34.2% of SWPPX by weight.
You probably hold more than two funds
This page compares SWPPX and VONG. 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 SWPPX vs VONG
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, SWPPX as of 2026-04-30, VONG as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.