EFA vs VTSAX: 1% overlap
iShares MSCI EAFE ETF and Vanguard Total Stock Market Index Admiral share 1.0% 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
EFA and VTSAX hold 54 of the same securities. The ten contributing most to the overlap figure:
| Holding | in EFA | in VTSAX | Δ |
|---|---|---|---|
| MRK | 0.1% | 0.4% | 0.3% |
| ALL | 0.1% | 0.1% | 0.0% |
| PRU | 0.2% | 0.1% | 0.1% |
| ADM | 0.1% | 0.1% | 0.0% |
| HBAN | 0.1% | 0.0% | 0.0% |
| ROP | 1.4% | 0.0% | 1.3% |
| EQT | 0.1% | 0.0% | 0.0% |
| SUNB | 0.1% | 0.0% | 0.1% |
| TEL | 0.0% | 0.1% | 0.0% |
| CASH | 0.0% | 0.6% | 0.6% |
Where EFA and VTSAX 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 | EFA | VTSAX | Δ |
|---|---|---|---|
| Information Technology | 12.0% | 35.2% | −23.2pp |
| Financials | 25.8% | 11.9% | +13.9pp |
| Industrials | 19.0% | 10.4% | +8.6pp |
| Communication Services | 3.1% | 9.1% | −5.9pp |
| Materials | 5.8% | 2.0% | +3.7pp |
| Consumer Staples | 7.0% | 4.3% | +2.7pp |
| Utilities | 4.5% | 2.2% | +2.3pp |
| Health Care | 8.0% | 9.5% | −1.6pp |
Δ is EFA minus VTSAX, 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
90.0% of EFA by weight, held in no part of VTSAX.
97.8% of VTSAX by weight, held in no part of EFA.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| EFA | VTSAX | |
|---|---|---|
| Top 10 holdings | 14.5% | 31.9% |
| Positions held | 678 | 3,495 |
| Cost per $10,000 held, per year | $33 | $4 |
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 EFA and VTSAX overlap?
EFA and VTSAX overlap 1.0% by portfolio weight — largely distinct portfolios. They share 54 holdings. The figure comes from current issuer holdings files (EFA as of 2026-07-23, VTSAX as of 2026-06-30).
How is the overlap between EFA and VTSAX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If EFA holds a stock at 6% and VTSAX 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 EFA and VTSAX?
That depends on your goals — we state facts, not advice. At 1.0% overlap, each fund still contributes meaningfully distinct exposure.
What does EFA own that VTSAX doesn't?
EFA holds 678 positions and VTSAX holds 3,495; 623 of EFA's positions don't appear in VTSAX at all, and they are 90.0% of EFA by weight.
You probably hold more than two funds
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Related comparisons
Sources: issuer holdings files, EFA as of 2026-07-23, VTSAX as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.