BMAY vs CMAY: Cap, Buffer & Days Left
As of Oct 13, 2026 CMAY can fall 7.6% before its buffer engages and BMAY 6.5%. Net assets on Oct 13, 2026: $239m for Innovator U.S. Equity Buffer ETF - May and $2m for Corgi U.S. Equities 15% Structured Buffer ETF - May Series.
CMAY costs 0.49 points a year less; BMAY is far larger, $239m against $2m.
Points (pts) are percentage points.
| BMAY | CMAY | |
|---|---|---|
| Expense ratio | 0.79% | 0.30% |
| Net assets | $239m | $2m |
| Total return, 1 year | +12.3% | not published |
| What it tracks | SPY | SPY |
| Holdings in common | not published | |
BMAY: reference +8.3% since period start, fund +6.6%; buffer 0 to −9; cap +16.9%; Between buffer and cap. Figures to Oct 13, 2026.
BMAY: reference +8.3% since period start, fund +6.6%; buffer 0 to −9; cap +16.9%; Between buffer and cap. Figures to Oct 13, 2026.
CMAY: reference +8.3% since period start, fund +5.3%; buffer 0 to −15; cap +11.0%; Between buffer and cap. Figures to Oct 13, 2026.
CMAY: reference +8.3% since period start, fund +5.3%; buffer 0 to −15; cap +11.0%; Between buffer and cap. Figures to Oct 13, 2026.
A percentile among the 292 buffer ETFs on stocks with a live outcome period. Today's position against one 20% fall; it ignores smaller falls, and stock buffers are never ranked against bond or commodity ones. All buffer ETFs ranked by it → How it is computed →
Where each one stands today
BMAY resets first, on Apr 30, 2027, 199 days from now; CMAY runs to Apr 30, 2027, 199 days. A fall from here reaches BMAY’s buffer after 6.5% and CMAY’s after 7.6%. Both track SPY, so what separates them is where each is in its own period.
Performance, window by window
| Total return | Gap to the reference's price return | |||
|---|---|---|---|---|
| Window | BMAY | CMAY | BMAY | CMAY |
| 3 months | +3.1% | +2.3% | −0.4 pts | −1.2 pts |
| 6 months | +6.9% | not published | −5.1 pts | not published |
| 1 year | +12.3% | not published | −5.1 pts | not published |
| 3 years | +56.9% | not published | −23.4 pts | not published |
| Since launch Not the same days: BMAY May 2020 · CMAY May 2026 | +95.1% | +4.3% | −80.0 pts | −3.7 pts |
Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. Source: ETFIQ. Open this comparison in the app →
On the same fields
As of Oct 13, 2026. Source: ETFIQ.
About BMAY
From its price on Oct 13, 2026, the fund can gain about 9.3% more before it reaches its cap. The fund's price can fall 6.5% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 7.6% from today's level to the point where the buffer begins. Protection left, in index points: 9.0% of the 9.0% buffer still sits below today's SPY level. 199 days remained on Oct 13, 2026. On Apr 30, 2027 the period ends and a new cap is set.
About CMAY
The fund's price can fall 7.6% from here before the buffer starts absorbing losses, by the issuer's figure. Protection left, in index points: 15.0% of the 15.0% buffer still sits below today's SPY level.
Questions people ask
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
How this is computed
It is a place in a set, not a rating or a recommendation.
ETFIQ calculates every figure from each issuer’s published outcome-period terms. Buffer ETFs hold options on an index, not shares, so there is no holdings overlap to report.
Every figure is an ETFIQ calculation with distributions reinvested.
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ETFIQ, BMAY against CMAY, data as of Oct 13, 2026. https://etfiq.com/compare/buffer/bmay-vs-cmay
ETFIQ. (Oct 13, 2026). BMAY against CMAY. Retrieved from https://etfiq.com/compare/buffer/bmay-vs-cmay
[BMAY against CMAY (ETFIQ, Oct 13, 2026)](https://etfiq.com/compare/buffer/bmay-vs-cmay)
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