Which resets first, IAUG or IDAU?

IAUG ends its outcome period on Jul 31, 2027 and IDAU on Jul 31, 2027. A new cap is set the day after each.

Which is cheaper, IAUG or IDAU?

IAUG charges 0.85% a year and IDAU charges 0.30%, so IDAU is cheaper. Fees come from each fund's prospectus.

IAUG vs IDAU: which one stands where?

As of Oct 1, 2026 IAUG can fall 0.0% before its buffer engages and IDAU 0.0%. Innovator Intl Developed Power Buffer ETF - Aug and Corgi International Developed Equities 15% Structured Buffer ETF - August Series.

IAUGBuffer working

IAUG: reference −1.6% since period start, fund −0.8%; buffer 0 to −15; cap +16.2%; Buffer working.

IDAUBuffer working

IDAU: reference −2.0% since period start, fund −1.8%; buffer 0 to −15; cap +16.2%; Buffer working.

ETFIQ Downside Cover Score · IAUG scores higherIf the market falls into a bear market from here, how much does the buffer absorb?

IAUG 64.3

IDAU 63

0.2, the lowest in this set99.8, the highest

A percentile among the 293 buffer ETFs with a live outcome period. It is a position in a set, not a rating, and neither end of it is a recommendation. All buffer ETFs ranked by it → How it is computed →

Where each one stands today

IAUG resets first, on Jul 31, 2027, 304 days from now; IDAU runs to Jul 31, 2027, 304 days. A fall from here reaches IAUG’s buffer after 0.0% and IDAU’s after 0.0%. Both track EFA, so what separates them is where each is in its own period.

Every figure is ETFIQ’s own, from the issuer’s published outcome-period terms. A buffer ETF holds FLEX options on its reference index rather than shares, so there is no holdings overlap between two of them to report.

Performance, window by window

	Total return		Gap to the reference
Window	IAUG	IDAU	IAUG	IDAU
3 months	+0.3%	not published	−0.5 pts	not published
6 months	+4.9%	not published	−2.1 pts	not published
1 year	+8.5%	not published	−6.6 pts	not published

IAUG and IDAU over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

IAUG

Innovator Intl Developed Power Buffer ETF - Aug · Absorbs the first 15% of loss on EFA and caps the gain at 16.2%, over a period ending Jul 31, 2027

IDAU

Corgi International Developed Equities 15% Structured Buffer ETF - August Series · Absorbs the first 15% of loss on EFA and caps the gain at 16.2%, over a period ending Jul 31, 2027

Issuer Innovator Corgi

Reference index EFA EFA

Buffer 15% 15%

Outcome period Jul 31, 2026 to Jul 31, 2027 Aug 1, 2026 to Jul 31, 2027

Days left 304 304

Starting cap +16.2% +16.2%

Can still gain 16.9% not published

Fall before buffer 0.0% 0.0%

Protection left, index points 13.4% of 15.0% 13.0% of 15.0%

Index return this period −1.6% −2.0%

Fund return this period −0.8% −1.8%

State today Buffer working Buffer working

Expense ratio 0.85% 0.30%

Net assets $81m $1m

IAUG and IDAU on the same fields, as of Oct 1, 2026. Source: ETFIQ.

IAUG in plain words

From its price on Oct 1, 2026, the fund can gain about 16.9% more before it reaches its cap. Protection left, in index points: 13.4% of the 15.0% buffer still sits below today's EFA level. 304 days remained on Oct 1, 2026. On Jul 31, 2027 the period ends and a new cap is set.

IDAU in plain words

Protection left, in index points: 13.0% of the 15.0% buffer still sits below today's EFA level.

Questions people ask

Which resets first, IAUG or IDAU?: IAUG ends its outcome period on Jul 31, 2027 and IDAU on Jul 31, 2027. A new cap is set the day after each.
Which is cheaper, IAUG or IDAU?: IAUG charges 0.85% a year and IDAU charges 0.30%, so IDAU is cheaper. Fees come from each fund's prospectus.

Other comparisons

EFA →IAUG on its own →IDAU on its own →How every figure is computed →Standards and sources →

Where these figures came from

IAUG filings on SEC EDGAR ↗Innovator page for IAUG ↗IDAU filings on SEC EDGAR ↗Corgi website ↗

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

Cite this page

ETFIQ, IAUG against IDAU, data as of Oct 1, 2026. https://etfiq.com/compare/buffer/iaug-vs-idau

Open data

Free to use with attribution. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.