SPY vs VBR: 3% overlap
SPDR S&P 500 ETF Trust and Vanguard Small-Cap Value ETF share 2.7% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published 27 days apart — VBR as of 2026-06-30, the rest through 2026-07-27. 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
SPY and VBR hold 106 of the same securities. The ten contributing most to the overlap figure:
| Holding | in SPY | in VBR | Δ |
|---|---|---|---|
| FLEX | 0.1% | 0.3% | 0.2% |
| STLD | 0.1% | 0.3% | 0.3% |
| EME | 0.1% | 0.4% | 0.3% |
| JBL | 0.1% | 0.9% | 0.8% |
| EQT | 0.1% | 0.2% | 0.1% |
| CNC | 0.0% | 0.3% | 0.3% |
| TPR | 0.0% | 0.6% | 0.6% |
| ATO | 0.0% | 0.6% | 0.6% |
| NRG | 0.0% | 0.7% | 0.6% |
| Q | 0.0% | 0.4% | 0.3% |
Where SPY and VBR 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 | SPY | VBR | Δ |
|---|---|---|---|
| Information Technology | 36.8% | 9.4% | +27.4pp |
| Industrials | 8.9% | 18.8% | −9.9pp |
| Real Estate | 1.9% | 9.8% | −7.8pp |
| Communication Services | 9.5% | 2.4% | +7.1pp |
| Financials | 12.6% | 18.3% | −5.7pp |
| Materials | 1.9% | 7.2% | −5.4pp |
| Utilities | 2.2% | 5.2% | −3.0pp |
| Consumer Discretionary | 8.8% | 11.4% | −2.5pp |
Δ is SPY minus VBR, 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
97.2% of SPY by weight, held in no part of VBR.
69.8% of VBR by weight, held in no part of SPY.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| SPY | VBR | |
|---|---|---|
| Top 10 holdings | 36.7% | 6.2% |
| Positions held | 505 | 839 |
| Cost per $10,000 held, per year | $9 | $5 |
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 SPY and VBR overlap?
SPY and VBR overlap 2.7% by portfolio weight — largely distinct portfolios. They share 106 holdings. The figure comes from current issuer holdings files (SPY as of 2026-07-27, VBR as of 2026-06-30).
How is the overlap between SPY and VBR calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If SPY holds a stock at 6% and VBR 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 SPY and VBR?
That depends on your goals — we state facts, not advice. At 2.7% overlap, each fund still contributes meaningfully distinct exposure.
What does SPY own that VBR doesn't?
SPY holds 505 positions and VBR holds 839; 398 of SPY's positions don't appear in VBR at all, and they are 97.2% of SPY by weight.
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Related comparisons
Sources: issuer holdings files, SPY as of 2026-07-27, VBR as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.