Data as of Nov 4, 2026.
CPSM vs MAYC: Cap, Buffer & Days Left
MAYC can fall 4.7% before its buffer engages as of Nov 3, 2026, and CPSM 2.6% as of Nov 4, 2026.
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Net assets on Nov 4, 2026: $59m for Calamos S&P 500 Structured Alt Protection ETF - May and $1.2m for Corgi U.S. Equities 10% Structured Buffer ETF - May Series.
CPSM: reference +6.4% since period start, fund +2.3%; buffer Floor; cap +6.7%; Full floor. Data to Nov 4, 2026.
Data to Nov 4, 2026.MAYC: reference +5.0% since period start, fund +4.6%; buffer 0 to −10; cap +13.5%; Between buffer and cap. Data to Nov 3, 2026.
MAYC: reference +5.0% since period start, fund +4.6%; buffer 0 to −10; cap +13.5%; Between buffer and cap. Data to Nov 3, 2026.Pair scorecard
MAYC costs 0.39 points a year less; CPSM is far larger, $59m against $1.2m.
Points (pts) are percentage points.
| Measure | CPSM | MAYC |
|---|---|---|
| Return | ||
| Total return, 1 year | +4.8% | not published |
| Drawdown | ||
| Index fall to the buffer | 6.0% | 4.7% |
| Benchmark | ||
| What it tracks | SPY | SPY |
| Cost and size | ||
| Expense ratio | 0.69% | 0.30% |
| Net assets | $59m | $1.2m |
| Holdings | ||
| Holdings in common | not published | |
Window by window
| Total return | Gap to the reference's price return | |||
|---|---|---|---|---|
| Window | CPSM | MAYC | CPSM | MAYC |
| 3 months | +1.0% | +1.1% | +1.3 pts | +1.5 pts |
| 6 months | +2.1% | +4.2% | −2.4 pts | −0.3 pts |
| 1 year | +4.8% | – | −8.7 pts | – |
| Since launchNot the same days: CPSM May 2024 · MAYC May 2026 | +18.8% | +5.0% | −34.5 pts | −1.4 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.
These are two different products. CPSM is a floor fund, which caps how far a holder can fall. MAYC is a buffer fund, which absorbs the first part of a fall and leaves everything below it with the holder.
Where each one stands today
CPSM resets first, on Apr 30, 2027, 177 days from now; MAYC runs to Apr 30, 2027, 178 days. A fall from here reaches CPSM’s buffer after 2.6% and MAYC’s after 4.7%. Both track SPY, so what separates them is where each is in its own period.
CPSM
The fund's price can fall 2.6% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 6.0% from today's level to the point where the buffer begins. Protection left, in index points: 100.0% of the 100.0% buffer still sits below today's SPY level. 177 days remained on Nov 4, 2026. On Apr 30, 2027 the period ends and a new cap is set.
MAYC
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: 10.0% of the 10.0% buffer still sits below today's SPY level. 178 days remained on Nov 3, 2026.
Questions people ask
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
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, CPSM against MAYC, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/cpsm-vs-mayc
ETFIQ. (Nov 4, 2026). CPSM against MAYC. Retrieved from https://etfiq.com/compare/buffer/cpsm-vs-mayc
[CPSM against MAYC (ETFIQ, Nov 4, 2026)](https://etfiq.com/compare/buffer/cpsm-vs-mayc)
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