IEFA vs TSPS: 2% overlap
iShares Core MSCI EAFE ETF and TSP S Fund — shown via extended-market proxy share 2.3% 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
IEFA and TSPS hold 113 of the same securities. The ten contributing most to the overlap figure:
| Holding | in IEFA | in TSPS | Δ |
|---|---|---|---|
| RKT | 0.2% | 0.2% | 0.0% |
| CSL | 0.2% | 0.2% | 0.0% |
| AAL | 0.2% | 0.1% | 0.1% |
| SUNB | 0.1% | 0.3% | 0.2% |
| NXT | 0.1% | 0.2% | 0.1% |
| CFR | 0.5% | 0.1% | 0.4% |
| HEI | 0.1% | 0.2% | 0.1% |
| HEI-A | 0.1% | 0.2% | 0.1% |
| ALV | 0.7% | 0.1% | 0.6% |
| ACA | 0.1% | 0.1% | 0.0% |
Where IEFA and TSPS 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 | IEFA | TSPS | Δ |
|---|---|---|---|
| Financials | 24.2% | 13.9% | +10.3pp |
| Information Technology | 11.9% | 17.6% | −5.7pp |
| Health Care | 7.6% | 13.2% | −5.6pp |
| Consumer Staples | 6.7% | 2.7% | +4.0pp |
| Cash and/or Derivatives | 0.5% | 3.8% | −3.3pp |
| Materials | 6.4% | 4.1% | +2.3pp |
| Utilities | 4.2% | 1.9% | +2.3pp |
| Real Estate | 2.7% | 4.8% | −2.1pp |
Δ is IEFA minus TSPS, 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
92.7% of IEFA by weight, held in no part of TSPS.
91.5% of TSPS by weight, held in no part of IEFA.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| IEFA | TSPS | |
|---|---|---|
| Top 10 holdings | 12.5% | 10.6% |
| Positions held | 2,567 | 3,327 |
| Cost per $10,000 held, per year | $7 | $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 IEFA and TSPS overlap?
IEFA and TSPS overlap 2.3% by portfolio weight — largely distinct portfolios. They share 113 holdings. The figure comes from current issuer holdings files (IEFA as of 2026-07-23, TSPS as of 2026-06-30).
How is the overlap between IEFA and TSPS calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If IEFA holds a stock at 6% and TSPS 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 IEFA and TSPS?
That depends on your goals — we state facts, not advice. At 2.3% overlap, each fund still contributes meaningfully distinct exposure.
What does IEFA own that TSPS doesn't?
IEFA holds 2,567 positions and TSPS holds 3,327; 2,453 of IEFA's positions don't appear in TSPS at all, and they are 92.7% of IEFA by weight.
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Related comparisons
Sources: issuer holdings files, IEFA as of 2026-07-23, TSPS as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.