IJR vs VBR: 21% overlap
iShares Core S&P Small-Cap ETF and Vanguard Small-Cap Value ETF share 21.3% 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 1.8. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
IJR and VBR hold 337 of the same securities. The ten contributing most to the overlap figure:
| Holding | in IJR | in VBR | Δ |
|---|---|---|---|
| CASH | 2.0% | 0.8% | 1.2% |
| VSAT | 0.6% | 0.2% | 0.3% |
| ESI | 0.5% | 0.2% | 0.2% |
| RAL | 0.4% | 0.2% | 0.3% |
| PLXS | 0.4% | 0.2% | 0.2% |
| ZWS | 0.4% | 0.2% | 0.2% |
| NPO | 0.4% | 0.2% | 0.2% |
| EMN | 0.4% | 0.2% | 0.3% |
| POOL | 0.3% | 0.2% | 0.2% |
| QRVO | 0.4% | 0.2% | 0.2% |
Where IJR 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 | IJR | VBR | Δ |
|---|---|---|---|
| Real Estate | 6.4% | 9.8% | −3.4pp |
| Materials | 3.9% | 7.2% | −3.4pp |
| Utilities | 2.3% | 5.2% | −3.0pp |
| Consumer Discretionary | 14.3% | 11.4% | +2.9pp |
| Information Technology | 11.9% | 9.4% | +2.5pp |
| Health Care | 10.5% | 8.0% | +2.4pp |
| Cash & Other | -1.7% | 0.0% | −1.7pp |
| Communication Services | 3.7% | 2.4% | +1.3pp |
Δ is IJR 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
43.1% of IJR by weight, held in no part of VBR.
78.7% of VBR by weight, held in no part of IJR.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| IJR | VBR | |
|---|---|---|
| Top 10 holdings | 6.4% | 6.2% |
| Positions held | 603 | 839 |
| Cost per $10,000 held, per year | $6 | $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 IJR and VBR overlap?
IJR and VBR overlap 21.3% by portfolio weight — moderate overlap. They share 337 holdings. The figure comes from current issuer holdings files (IJR as of 2026-07-27, VBR as of 2026-06-30).
How is the overlap between IJR and VBR calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If IJR 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 IJR and VBR?
That depends on your goals — we state facts, not advice. At 21.3% overlap, each fund still contributes meaningfully distinct exposure.
What does IJR own that VBR doesn't?
IJR holds 603 positions and VBR holds 839; 265 of IJR's positions don't appear in VBR at all, and they are 43.1% of IJR by weight.
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Related comparisons
Sources: issuer holdings files, IJR as of 2026-07-27, VBR as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.