Which is cheaper, IDAU or IEFA?

IDAU charges 0.30% a year and IEFA charges 0.07%, so IEFA is cheaper. Fees come from each fund's prospectus.

Are IDAU and IEFA the same kind of fund?

No. IDAU is a buffer ETF and IEFA is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.

Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.

ETFIQetfiq.com · independent ETF data

IDAU vs IEFA: how they differ

IDAU and IEFA are measured over different days, and IEFA charges 0.07% against 0.30%.

Corgi International Developed Equities 15% Structured Buffer ETF - August Series and iShares Core MSCI EAFE ETF.

IDAU and IEFA on the fields both publish, as of Sep 12, 2026. Source: ETFIQ.
	IDAU Corgi International Developed Equities 15% Structured Buffer ETF - August Series	IEFA iShares Core MSCI EAFE ETF
Where it sits	Buffer ETF	Core index fund
Issuer	Corgi	iShares
What it is	Defined outcome, 15% on EFA	Core MSCI EAFE
Total return, 1 year	not published	+18.0%
S&P 500 over the same days	not published	+17.5%
Gap to the S&P 500	not available	+0.5 pts
Expense ratio	0.30%	0.07%
Holdings	not filed	2632

IDAU in plain words

The fund's price can fall 0.6% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, EFA can fall 0.6% 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. 323 days remained on Sep 12, 2026. On Jul 31, 2027 the period ends and a new cap is set.

IEFA in plain words

IEFA is an index equity fund tracking the Core MSCI EAFE. Over the year to Sep 11, 2026 it returned +18.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.07% a year. By its holdings filed for Apr 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 2632 positions, with the top ten at 11.5%.

Questions people ask

Which is cheaper, IDAU or IEFA?: IDAU charges 0.30% a year and IEFA charges 0.07%, so IEFA is cheaper. Fees come from each fund's prospectus.
Are IDAU and IEFA the same kind of fund?: No. IDAU is a buffer ETF and IEFA is an index ETF, so they are built for different jobs. The table compares what both publish: return, cost and what each actually holds.

Other comparisons

Where to next

Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

IDAU against IEFA, ETFIQ, data as of Sep 12, 2026. Every figure is arithmetic on a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, IDAU against IEFA, data as of Sep 12, 2026. https://etfiq.com/compare/any/IDAU-IEFA Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources