Data as of Nov 4, 2026.

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Buffer ETFs

CPSM vs PJUN: Cap, Buffer & Days Left

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As of Nov 4, 2026 CPSM can fall 2.6% before its buffer engages and PJUN 2.4%, and CPSM resets 31 days sooner.

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Net assets on Nov 4, 2026: $59m for Calamos S&P 500 Structured Alt Protection ETF - May and $878m for Innovator U.S. Equity Power Buffer ETF - Jun.

At a glance
CPSM Full floor
Full floorCPSM: reference +6.4% since period start, fund +2.3%; buffer Floor; cap +6.7%; Full floor. Data to Nov 4, 2026.full floor beneath+6.4%full floor0% period start+6.7% cap+0.3% more to the capTODAY · SPY +6.4%Full floorCPSM: reference +6.4% since period start, fund +2.3%; buffer Floor; cap +6.7%; Full floor. Data to Nov 4, 2026.full floor beneathfull floor0% start+6.7% cap+6.4% gain captured+0.3% more to the capTODAY · SPY +6.4%

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.
PJUN Between buffer and cap
Between buffer and capPJUN: reference +1.3% since period start, fund +2.1%; buffer 0 to −15; cap +13.8%; Between buffer and cap. Data to Nov 4, 2026.15 pts of buffer+12.5% to cap−15.0% floor0% period start+13.8% cap+1.3% gain capturedTODAY · SPY +1.3%Between buffer and capPJUN: reference +1.3% since period start, fund +2.1%; buffer 0 to −15; cap +13.8%; Between buffer and cap. Data to Nov 4, 2026.15 pts−15.0% floor0% start+13.8% cap+1.3% gain captured+12.5% more to the capTODAY · SPY +1.3%

PJUN: reference +1.3% since period start, fund +2.1%; buffer 0 to −15; cap +13.8%; Between buffer and cap. Data to Nov 4, 2026.

PJUN: reference +1.3% since period start, fund +2.1%; buffer 0 to −15; cap +13.8%; Between buffer and cap. Data to Nov 4, 2026.

Pair scorecard

CPSM costs 0.10 points a year less; their one-year returns differ by 2.4 points; PJUN is 14.9 times larger.

Points (pts) are percentage points.

CPSM vs PJUN: Cap, Buffer & Days Left
MeasureCPSMPJUN
Return
Total return, 1 year+4.8%+7.2%
Drawdown
Index fall to the buffer6.0%1.3%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.69%0.79%
Net assets$59m$878m
Holdings
Holdings in commonnot published

Method

Window by window

Window by window: CPSM vs PJUN: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowCPSMPJUNCPSMPJUN
3 months+1.0%+0.6%+1.3 pts+1.0 pts
6 months+2.1%+2.2%−2.4 pts−2.3 pts
1 year+4.8%+7.2%−8.7 pts−6.4 pts
3 years–+39.3%–−37.1 pts
Since launchNot the same days: CPSM May 2024 · PJUN Jun 2019+18.8%+74.0%−34.5 pts−105.2 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

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 PJUN Innovator U.S. Equity Power Buffer ETF - Jun · Absorbs the first 15% of loss on SPY and caps the gain at 13.8%, over a period ending May 31, 2027
Reference index SPY SPY
Buffer 100% 15%
Outcome period May 1, 2026 to Apr 30, 2027 May 31, 2026 to May 31, 2027
Days left 177 208
Starting cap +6.7% +13.8%
Can still gain not published 11.2%
Fall before buffer 2.6% 2.4%
Protection left, index points 100.0% of 100.0% 15.0% of 15.0%
Index return this period +6.4% +1.3%
Fund return this period +2.3% +2.1%
State today Open Open
Expense ratio 0.69% 0.79%
Net assets $59m $878m

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. PJUN is a buffer fund, which absorbs the first part of a fall and leaves everything below it with the holder.

They do not reset together. CPSM has 177 days of its period left and PJUN has 208, so the two are not the same bet on the same months.

Where each one stands today

CPSM resets first, on Apr 30, 2027, 177 days from now; PJUN runs to May 31, 2027, 208 days. A fall from here reaches CPSM’s buffer after 2.6% and PJUN’s after 2.4%. Both track SPY, so what separates them is where each is in its own period.

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About each fund
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.

PJUN

From its price on Nov 4, 2026, the fund can gain about 11.2% more before it reaches its cap. The fund's price can fall 2.4% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 1.3% 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. 208 days remained on Nov 4, 2026. On May 31, 2027 the period ends and a new cap is set.

Questions people ask

Which resets first, CPSM or PJUN?
CPSM ends its outcome period on Apr 30, 2027 and PJUN on May 31, 2027. A new cap is set the day after each.
Which is cheaper, CPSM or PJUN?
CPSM charges 0.69% a year and PJUN charges 0.79%, so CPSM is cheaper. Fees come from each fund's prospectus.
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Sources and dates

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.

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ETFIQ, CPSM against PJUN, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/cpsm-vs-pjun

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