Data as of Oct 28, 2026.
EFA vs IDMY: Differences, Returns & Fees
EFA and IDMY are measured over different days, and IDMY charges 0.30% to EFA's 0.32%.
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Net assets: $76.8bn on Oct 27, 2026 for iShares MSCI EAFE ETF, and $1.3m on Oct 28, 2026 for Corgi International Developed Equities 15% Structured Buffer ETF - May Series.
Pair scorecard
IDMY costs 0.02 points a year less; EFA is far larger, $76.8bn against $1.3m.
| Measure | EFA | IDMY |
|---|---|---|
| Return | ||
| Total return, 1 year | +12.1% | not published |
| Drawdown | ||
| Below its high | 4.7%, high on Aug 25, 2026 | |
| Index fall to the buffer | 1.5% | |
| Fund price fall to the buffer | 1.5% | |
| Benchmark | ||
| What it tracks | MSCI EAFE Index | EFA |
| The outcome period | ||
| Buffer left, in index points | 15.0% of 15.0% | |
| Days left in the period | 185 | |
| Period ends | Apr 30, 2027 | |
| Cost and size | ||
| Expense ratio | 0.32% | 0.30% |
| Net assets, as of Oct 27, 2026 | $76.8bn | $1.3m |
| Holdings | ||
| Holdings in common | not published | |
| In the S&P 500, by weight | 0% | |
| Top ten holdings, share of the fund | 14.3% | |
Side by side
EFA and IDMY on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
EFA
EFA tracks an index of Developed markets ex US. Over the year to Oct 28, 2026 it returned +12.1% with distributions reinvested, against +14.3% for its benchmark, the MSCI ACWI ex USA Index. The prospectus expense ratio is 0.32% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 665 positions, with the top ten at 14.3%. It sat 4.7% below its high of Aug 25, 2026 on Oct 28, 2026.
IDMY
The fund's price can fall 1.5% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, EFA can fall 1.5% from today's level to the point where the buffer begins. Protection left, in index points: 15.0% of the 15.0% buffer still sits below today's EFA level. 185 days remained on Oct 27, 2026. On Apr 30, 2027 the period ends and a new cap is set.
Questions people ask
- Are EFA and IDMY in the same category?
- EFA is a stock ETF and IDMY is a buffer ETF, so they do different jobs. The table compares what both publish: return, cost and holdings.
- Which is cheaper, EFA or IDMY?
- IDMY is cheaper, by 0.02 percentage points a year. That is about $2 on $10,000 held for a year. Fees come from each fund's prospectus.
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ETFIQ, EFA against IDMY, data as of Oct 28, 2026. https://etfiq.com/compare/any/efa-vs-idmy
ETFIQ. (Oct 28, 2026). EFA against IDMY. Retrieved from https://etfiq.com/compare/any/efa-vs-idmy
[EFA against IDMY (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/efa-vs-idmy)
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