Data as of Nov 4, 2026.
CMAY vs MAYW: Cap, Buffer & Days Left
MAYW can fall 5.0% before its buffer engages as of Nov 4, 2026, and CMAY 4.7% as of Nov 3, 2026.
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Net assets: $1.2m on Nov 4, 2026 for Corgi U.S. Equities 15% Structured Buffer ETF - May Series, and $457m on Nov 3, 2026 for AllianzIM U.S. Equity Buffer20 ETF - May.
CMAY: reference +5.0% since period start, fund +4.0%; buffer 0 to −15; cap +11.0%; Between buffer and cap. Data to Nov 3, 2026.
CMAY: reference +5.0% since period start, fund +4.0%; buffer 0 to −15; cap +11.0%; Between buffer and cap. Data to Nov 3, 2026.MAYW: reference +6.7% since period start, fund +4.4%; buffer 0 to −20; cap +11.2%; Between buffer and cap. Data to Nov 4, 2026.
MAYW: reference +6.7% since period start, fund +4.4%; buffer 0 to −20; cap +11.2%; Between buffer and cap. Data to Nov 4, 2026.Pair scorecard
CMAY costs 0.44 points a year less; MAYW is far larger, $457m against $1.2m.
Points (pts) are percentage points.
| Measure | CMAY | MAYW |
|---|---|---|
| Return | ||
| Total return, 1 year | not published | +8.0% |
| Drawdown | ||
| Index fall to the buffer | 4.7% | 6.3% |
| Benchmark | ||
| What it tracks | SPY | SPY |
| Cost and size | ||
| Expense ratio | 0.30% | 0.74% |
| Net assets, as of Nov 3, 2026 | $1.2m | $457m |
| Holdings | ||
| Holdings in common | not published | |
How much of a bear-market fall the buffer would absorb from today's level, ranked against 292 buffer ETFs on stocks with a live outcome period. 100 is best. How it is computed
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 →
Risk and return
May 8, 2026 to Oct 30, 2026 · 25 weekly returnsFrom May 2026 to Oct 2026, MAYW returned more: +2.8% to +2.2%. MAYW fell less at its worst: −0.9% to −1.2%.
Full scorecard
3 measures, with how each is measured Open ↓
| Measure | CMAY | MAYW | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +2.2% | +2.8% | MAYW | Price change plus distributions, reinvested. |
| Price return | +2.2% | +2.8% | MAYW | Price change alone, distributions left out. |
| Risk | ||||
| Max drawdown | −1.2% | −0.9% | MAYW | Deepest fall from a high to the low after it. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 25 weekly returns. Cash rate: the 13-week Treasury bill.
Window by window
| Total return | Gap to the reference's price return | |||
|---|---|---|---|---|
| Window | CMAY | MAYW | CMAY | MAYW |
| 3 months | +0.7% | +1.3% | +1.1 pts | +1.7 pts |
| 6 months | +3.3% | +3.6% | −1.2 pts | −0.9 pts |
| 1 year | – | +8.0% | – | −5.6 pts |
| 3 years | – | +37.1% | – | −39.3 pts |
| Since launchNot the same days: CMAY May 2026 · MAYW May 2023 | +3.9% | +42.2% | −2.5 pts | −42.3 pts |
Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. – means no data for this window. Open this comparison in the app →
Side by side
As of Nov 4, 2026. Source: ETFIQ.
Where each one stands today
MAYW resets first, on Apr 30, 2027, 177 days from now; CMAY runs to Apr 30, 2027, 178 days. A fall from here reaches CMAY’s buffer after 4.7% and MAYW’s after 5.0%. Both track SPY, so what separates them is where each is in its own period.
No client brief for this pair: ETFIQ prints no one-year total return for CMAY.
CMAY
The fund's price can fall 4.7% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 4.7% 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 SPY level. 178 days remained on Nov 3, 2026. On Apr 30, 2027 the period ends and a new cap is set.
MAYW
From its price on Nov 4, 2026, the fund can gain about 5.8% more before it reaches its cap. The fund's price can fall 5.0% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 6.3% from today's level to the point where the buffer begins. Protection left, in index points: 20.0% of the 20.0% buffer still sits below today's SPY level. 177 days remained on Nov 4, 2026.
Questions people ask
Links are sources, not endorsements. 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 number 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 number is an ETFIQ calculation with distributions reinvested.
Cite this pageCitation, APA and Markdown
ETFIQ, CMAY against MAYW, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/cmay-vs-mayw
ETFIQ. (Nov 4, 2026). CMAY against MAYW. Retrieved from https://etfiq.com/compare/buffer/cmay-vs-mayw
[CMAY against MAYW (ETFIQ, Nov 4, 2026)](https://etfiq.com/compare/buffer/cmay-vs-mayw)
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