EFA vs IEFA: how much do they overlap?
iShares MSCI EAFE ETF (EFA) · iShares Core MSCI EAFE ETF (IEFA)
overlap by weight · 677 shared holdings
EFA: 677 holdings (as of 2026-04-30) · IEFA: 2549 holdings (as of 2026-04-30)
High overlap
What this means
EFA and IEFA are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in EFA | in IEFA |
|---|---|---|---|
| ASML Holding N.V. | — | 2.58% | 2.21% |
| HSBC HOLDINGS PLC | — | 1.45% | 1.24% |
| ASTRAZENECA PLC | — | 1.35% | 1.16% |
| Roche Holding AG | — | 1.32% | 1.13% |
| Novartis AG | — | 1.29% | 1.11% |
| Nestle S.A. | — | 1.2% | 1.03% |
| SHELL PLC | — | 1.19% | 1.02% |
| Siemens Aktiengesellschaft | — | 1.04% | 0.89% |
| COMMONWEALTH BANK OF AUSTRALIA | — | 0.97% | 0.83% |
| Mitsubishi UFJ Financial Group, Inc. | — | 0.93% | 0.8% |
FAQ
How much do EFA and IEFA overlap?
EFA and IEFA have a 83.8% overlap by weight, sharing 677 holdings (out of 677 in EFA and 2549 in IEFA), based on official issuer holdings as of 2026-04-30.
What does 83.8% overlap mean?
EFA and IEFA are largely the same portfolio. Holding both adds little diversification — most dollars end up in the same underlying stocks.
Which stocks do EFA and IEFA both hold?
The largest shared positions are ASML Holding N.V., HSBC HOLDINGS PLC, ASTRAZENECA PLC, Roche Holding AG, Novartis AG. The full list of top shared holdings with weights in each fund is shown on this page.