CPSM vs UMAY: Cap, Buffer & Days Left

As of Oct 13, 2026 UMAY can fall 9.9% before its buffer engages and CPSM 2.5%. Net assets on Oct 12, 2026: $59m for Calamos S&P 500 ® Structured Alt Protection ETF - May and $137m for Innovator U.S. Equity Ultra Buffer ETF - May.

CPSM costs 0.10 points a year less; their one-year returns differ by 4.7 points; UMAY is 2.3 times larger.

Points (pts) are percentage points.

CPSM vs UMAY: Cap, Buffer & Days Left
CPSMUMAY
Expense ratio0.69%0.79%
Net assets, as of Oct 12, 2026$59m$137m
Total return, 1 year+5.0%+9.7%
What it tracksSPYSPY
Holdings in commonnot published
Index fall to the buffer7.4%12.2%
CPSMAt its cap
At its capCPSM: reference +8.0% since period start, fund +2.3%; buffer Floor; cap +6.7%; At its cap. Figures to Oct 13, 2026.full floor beneath+6.7%full floor0% period start+6.7% capTODAY · SPY +8.0%At its capCPSM: reference +8.0% since period start, fund +2.3%; buffer Floor; cap +6.7%; At its cap. Figures to Oct 13, 2026.full floor beneathfull floor0% start+6.7% cap+6.7% gain capturedTODAY · SPY +8.0%

CPSM: reference +8.0% since period start, fund +2.3%; buffer Floor; cap +6.7%; At its cap. Figures to Oct 13, 2026.

Figures to Oct 13, 2026.

UMAYBetween buffer and cap
Between buffer and capUMAY: reference +8.2% since period start, fund +5.0%; buffer −5 to −35; cap +12.5%; Between buffer and cap. Figures to Oct 13, 2026.30 pts of buffer+8.2% gained−35.0% floor−5.0% buffer start0% period start+12.5% capfirst 5 pts are yours to lose+4.4% more to the capTODAY · SPY +8.2%Between buffer and capUMAY: reference +8.2% since period start, fund +5.0%; buffer −5 to −35; cap +12.5%; Between buffer and cap. Figures to Oct 13, 2026.30 pts of buffer−35.0% floor−5.0% buffer start0% start+12.5% capfirst 5 pts are yours to lose+8.2% gain captured+4.4% more to the capTODAY · SPY +8.2%

UMAY: reference +8.2% since period start, fund +5.0%; buffer −5 to −35; cap +12.5%; Between buffer and cap. Figures to Oct 13, 2026.

UMAY: reference +8.2% since period start, fund +5.0%; buffer −5 to −35; cap +12.5%; Between buffer and cap. Figures to Oct 13, 2026.

These are two different products. CPSM is a floor fund, which caps how far a holder can fall. UMAY is a buffer fund, which absorbs the first part of a fall and leaves everything below it with the holder.

CPSM is already at its cap, so more rise in the index adds nothing to it before the period ends.

Where each one stands today

CPSM resets first, on Apr 30, 2027, 199 days from now; UMAY runs to Apr 30, 2027, 199 days. A fall from here reaches CPSM’s buffer after 2.5% and UMAY’s after 9.9%. Both track SPY, so what separates them is where each is in its own period.

Performance, window by window

Performance, window by window: CPSM vs UMAY: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowCPSMUMAYCPSMUMAY
3 months+1.4%+3.0%−2.5 pts−0.9 pts
6 months+2.4%+5.2%−11.0 pts−8.2 pts
1 year+5.0%+9.7%−14.1 pts−9.5 pts
3 yearsnot published+40.8%not published−39.5 pts
Since launch
Not the same days: CPSM May 2024 · UMAY May 2020
+18.7%+53.8%−36.9 pts−121.3 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

CPSM
Calamos S&P 500 ® Structured Alt Protection ETF - May · Absorbs the whole loss on SPY and caps the gain at 6.7%, over a period ending Apr 30, 2027
UMAY
Innovator U.S. Equity Ultra Buffer ETF - May · Absorbs losses from 5.0% to 35.0% on SPY and caps the gain at 12.5%, over a period ending Apr 30, 2027
Reference index SPY SPY
Buffer 100% 5% to 35%
Outcome period May 1, 2026 to Apr 30, 2027 Apr 30, 2026 to Apr 30, 2027
Days left 199 199
Starting cap +6.7% +12.5%
Can still gain not published 6.8%
Fall before buffer 2.5% 9.9%
Protection left, index points 100.0% of 100.0% 30.0% of 30.0%
Index return this period +8.0% +8.2%
Fund return this period +2.3% +5.0%
State today At cap Open
Expense ratio 0.69% 0.79%
Net assets, as of Oct 12, 2026 $59m $137m

As of Oct 13, 2026. Source: ETFIQ.

About CPSM

SPY had already risen past this fund's cap of +6.7% for the period on Oct 13, 2026, so in index terms there is no more upside to collect. The fund's price can fall 2.5% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 7.4% 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. 199 days remained on Oct 13, 2026. On Apr 30, 2027 the period ends and a new cap is set.

About UMAY

From its price on Oct 13, 2026, the fund can gain about 6.8% more before it reaches its cap. The fund's price can fall 9.9% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 12.2% from today's level to the point where the buffer begins. Protection left, in index points: 30.0% of the 30.0% buffer still sits below today's SPY level.

Questions people ask

Which resets first, CPSM or UMAY?
CPSM ends its outcome period on Apr 30, 2027 and UMAY on Apr 30, 2027. A new cap is set the day after each.
Which is cheaper, CPSM or UMAY?
CPSM charges 0.69% a year and UMAY charges 0.79%, so CPSM is cheaper. Fees come from each fund's prospectus.
Other comparisons
Where these figures came from

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

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.

Cite this pageCitation, APA and Markdown

ETFIQ, CPSM against UMAY, data as of Oct 13, 2026. https://etfiq.com/compare/buffer/cpsm-vs-umay

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