BNDX vs IEFA: 1% overlap
Vanguard Total International Bond ETF and iShares Core MSCI EAFE ETF share 0.6% 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
BNDX and IEFA hold 29 of the same securities. The ten contributing most to the overlap figure:
| Holding | in BNDX | in IEFA | Δ |
|---|---|---|---|
| BNP | 0.1% | 0.5% | 0.3% |
| NAB | 0.1% | 0.3% | 0.3% |
| NWG | 0.0% | 0.3% | 0.2% |
| ORSTED | 0.0% | 0.0% | 0.0% |
| GSK | 0.0% | 0.4% | 0.4% |
| VOD | 0.0% | 0.1% | 0.1% |
| CCEP | 0.0% | 0.1% | 0.1% |
| CASH | 1.3% | 0.0% | 1.3% |
| SEK | 0.0% | 0.0% | 0.0% |
| ANZ | 0.0% | 0.3% | 0.3% |
Where BNDX and IEFA 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 | BNDX | IEFA | Δ |
|---|---|---|---|
| Unclassified | 88.4% | 0.0% | +88.4pp |
| Financials | 2.0% | 24.2% | −22.2pp |
| Industrials | 0.0% | 19.6% | −19.6pp |
| Information Technology | 0.1% | 11.9% | −11.8pp |
| Consumer Discretionary | 0.2% | 8.8% | −8.5pp |
| Health Care | 0.2% | 7.6% | −7.4pp |
| Consumer Staples | 0.1% | 6.7% | −6.6pp |
| Materials | 0.1% | 6.4% | −6.3pp |
Δ is BNDX minus IEFA, 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
98.0% of BNDX by weight, held in no part of IEFA.
91.8% of IEFA by weight, held in no part of BNDX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| BNDX | IEFA | |
|---|---|---|
| Top 10 holdings | 24.4% | 12.5% |
| Positions held | 3,115 | 2,567 |
| Cost per $10,000 held, per year | $7 | $7 |
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 BNDX and IEFA overlap?
BNDX and IEFA overlap 0.6% by portfolio weight — largely distinct portfolios. They share 29 holdings. The figure comes from current issuer holdings files (BNDX as of 2026-06-30, IEFA as of 2026-07-23).
How is the overlap between BNDX and IEFA calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If BNDX holds a stock at 6% and IEFA 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 BNDX and IEFA?
That depends on your goals — we state facts, not advice. At 0.6% overlap, each fund still contributes meaningfully distinct exposure.
What does BNDX own that IEFA doesn't?
BNDX holds 3,115 positions and IEFA holds 2,567; 3,086 of BNDX's positions don't appear in IEFA at all, and they are 98.0% of BNDX by weight.
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Related comparisons
Sources: issuer holdings files, BNDX as of 2026-06-30, IEFA as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.