VOO vs VUG: 57% overlap
Vanguard S&P 500 ETF and Vanguard Growth ETF share 57.1% 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 122 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VOO | in VUG | Δ |
|---|---|---|---|
| NVDA | 7.6% | 12.8% | 5.3% |
| AAPL | 7.0% | 12.6% | 5.5% |
| MSFT | 5.4% | 9.6% | 4.2% |
| AMZN | 4.1% | 5.2% | 1.0% |
| GOOGL | 3.2% | 5.8% | 2.6% |
| AVGO | 2.9% | 4.5% | 1.6% |
| GOOG | 2.6% | 4.6% | 2.0% |
| META | 1.9% | 3.4% | 1.5% |
| LLY | 1.4% | 2.7% | 1.3% |
| TSLA | 1.4% | 2.4% | 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 | 36.6% | 55.8% | −19.2pp |
| Financials | 12.4% | 4.3% | +8.1pp |
| Communication Services | 9.9% | 15.6% | −5.7pp |
| Health Care | 9.1% | 4.6% | +4.5pp |
| Industrials | 8.7% | 4.6% | +4.1pp |
| Consumer Staples | 4.7% | 1.5% | +3.2pp |
| Energy | 3.4% | 0.3% | +3.1pp |
| Utilities | 2.1% | 0.0% | +2.1pp |
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
42.6% of VOO by weight, held in no part of VUG.
2.3% 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 | 37.6% | 63.6% |
| Positions held | 504 | 147 |
| 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 57.1% by portfolio weight — substantial duplication if you hold both. They share 122 holdings. The figure comes from current issuer holdings files (VOO as of 2026-07-31, VUG as of 2026-07-31).
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 57.1% overlap, each fund still contributes meaningfully distinct exposure.
What does VOO own that VUG doesn't?
VOO holds 504 positions and VUG holds 147; 382 of VOO's positions don't appear in VUG at all, and they are 42.6% of VOO by weight.
You probably hold more than two funds
This page compares VOO and VUG. 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 VOO vs VUG
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, VOO as of 2026-07-31, VUG as of 2026-07-31. Weights are fractions of each fund. Diagnostics, not advice.