VOO vs VUG: 58% overlap
Vanguard S&P 500 ETF and Vanguard Growth ETF share 58.2% 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 1.4. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VOO and VUG hold 114 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VOO | in VUG | Δ |
|---|---|---|---|
| NVDA | 8.4% | 13.5% | 5.1% |
| AAPL | 7.4% | 12.5% | 5.1% |
| MSFT | 5.8% | 9.7% | 4.0% |
| AMZN | 3.7% | 4.3% | 0.5% |
| GOOGL | 3.1% | 5.2% | 2.1% |
| AVGO | 2.5% | 4.3% | 1.8% |
| GOOG | 2.5% | 4.1% | 1.6% |
| META | 2.4% | 4.2% | 1.8% |
| TSLA | 1.5% | 2.7% | 1.1% |
| AMD | 1.5% | 2.7% | 1.1% |
Where VOO and VUG 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 | VOO | VUG | Δ |
|---|---|---|---|
| Information Technology | 39.7% | 59.4% | −19.7pp |
| Financials | 11.3% | 4.0% | +7.3pp |
| Communication Services | 9.8% | 15.2% | −5.4pp |
| Health Care | 9.3% | 4.3% | +5.0pp |
| Industrials | 8.2% | 4.0% | +4.2pp |
| Energy | 3.4% | 0.3% | +3.1pp |
| Consumer Staples | 4.4% | 1.3% | +3.0pp |
| Utilities | 1.9% | 0.0% | +1.9pp |
Δ is VOO minus VUG, 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
41.7% of VOO by weight, held in no part of VUG.
2.4% of VUG by weight, held in no part of VOO.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VOO | VUG | |
|---|---|---|
| Top 10 holdings | 39.1% | 63.1% |
| Positions held | 504 | 135 |
| Cost per $10,000 held, per year | $3 | $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 VOO and VUG overlap?
VOO and VUG overlap 58.2% by portfolio weight — substantial duplication if you hold both. They share 114 holdings. The figure comes from current issuer holdings files (VOO as of 2026-09-30, VUG as of 2026-09-30).
How is the overlap between VOO and VUG calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VOO holds a stock at 6% and VUG 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 VOO and VUG?
That depends on your goals — we state facts, not advice. At 58.2% overlap, each fund still contributes meaningfully distinct exposure.
What does VOO own that VUG doesn't?
VOO holds 504 positions and VUG holds 135; 390 of VOO's positions don't appear in VUG at all, and they are 41.7% of VOO by weight.
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Related comparisons
Sources: issuer holdings files, VOO as of 2026-09-30, VUG as of 2026-09-30. Weights are fractions of each fund. Diagnostics, not advice.