VOOG vs XLB: 0% overlap
Vanguard S&P 500 Growth ETF and Materials Select Sector SPDR Fund share 0.4% 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VOOG and XLB hold 2 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VOOG | in XLB | Δ |
|---|---|---|---|
| NEM | 0.3% | 6.0% | 5.7% |
| CASH | 0.2% | 0.1% | 0.1% |
Where VOOG and XLB 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 | VOOG | XLB | Δ |
|---|---|---|---|
| Materials | 0.3% | 99.8% | −99.6pp |
| Information Technology | 52.2% | 0.0% | +52.2pp |
| Communication Services | 15.2% | 0.0% | +15.2pp |
| Financials | 8.5% | 0.0% | +8.5pp |
| Consumer Discretionary | 8.5% | 0.0% | +8.5pp |
| Industrials | 6.9% | 0.0% | +6.9pp |
| Health Care | 6.2% | 0.0% | +6.2pp |
| Consumer Staples | 1.1% | 0.0% | +1.1pp |
Δ is VOOG minus XLB, 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
99.5% of VOOG by weight, held in no part of XLB.
93.9% of XLB by weight, held in no part of VOOG.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VOOG | XLB | |
|---|---|---|
| Top 10 holdings | 56.4% | 57.4% |
| Positions held | 148 | 28 |
| Cost per $10,000 held, per year | $7 | $8 |
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 VOOG and XLB overlap?
VOOG and XLB overlap 0.4% by portfolio weight — largely distinct portfolios. They share 2 holdings. The figure comes from current issuer holdings files (VOOG as of 2026-06-30, XLB as of 2026-07-23).
How is the overlap between VOOG and XLB calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VOOG holds a stock at 6% and XLB 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 VOOG and XLB?
That depends on your goals — we state facts, not advice. At 0.4% overlap, each fund still contributes meaningfully distinct exposure.
What does VOOG own that XLB doesn't?
VOOG holds 148 positions and XLB holds 28; 146 of VOOG's positions don't appear in XLB at all, and they are 99.5% of VOOG by weight.
You probably hold more than two funds
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Related comparisons
Sources: issuer holdings files, VOOG as of 2026-06-30, XLB as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.