Data as of Nov 4, 2026.

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Buffer ETFs

AUGP vs CPSA: Cap, Buffer & Days Left

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As of Nov 4, 2026 AUGP can fall 2.8% before its buffer engages and CPSA 1.3%, and CPSA resets 1 day sooner.

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Net assets on Nov 4, 2026: $38m for PGIM S&P 500 Buffer 12 ETF - August and $50m for Calamos S&P 500 Structured Alt Protection ETF - August.

At a glance
AUGP Between buffer and cap
Between buffer and capAUGP: reference +2.6% since period start, fund +2.4%; buffer 0 to −12; cap +15.7%; Between buffer and cap. Data to Nov 4, 2026.12 pts of buffer+13.1% to cap−12.0% floor0% period start+15.7% cap+2.6% gain capturedTODAY · SPY +2.6%Between buffer and capAUGP: reference +2.6% since period start, fund +2.4%; buffer 0 to −12; cap +15.7%; Between buffer and cap. Data to Nov 4, 2026.12 pts−12.0% floor0% start+15.7% cap+2.6% gain captured+13.1% more to the capTODAY · SPY +2.6%

AUGP: reference +2.6% since period start, fund +2.4%; buffer 0 to −12; cap +15.7%; Between buffer and cap. Data to Nov 4, 2026.

AUGP: reference +2.6% since period start, fund +2.4%; buffer 0 to −12; cap +15.7%; Between buffer and cap. Data to Nov 4, 2026.
CPSA Full floor
Full floorCPSA: reference +1.2% since period start, fund +1.2%; buffer Floor; cap +7.8%; Full floor. Data to Nov 4, 2026.full floor beneathfull floor0% period start+7.8% cap+1.2% gain captured+6.6% more to the capTODAY · SPY +1.2%Full floorCPSA: reference +1.2% since period start, fund +1.2%; buffer Floor; cap +7.8%; Full floor. Data to Nov 4, 2026.full floor beneathfull floor0% start+7.8% cap+1.2% gain captured+6.6% more to the capTODAY · SPY +1.2%

CPSA: reference +1.2% since period start, fund +1.2%; buffer Floor; cap +7.8%; Full floor. Data to Nov 4, 2026.

Data to Nov 4, 2026.

Pair scorecard

AUGP costs 0.19 points a year less; their one-year returns differ by 6.0 points; CPSA is 1.3 times larger.

Points (pts) are percentage points.

AUGP vs CPSA: Cap, Buffer & Days Left
MeasureAUGPCPSA
Return
Total return, 1 year+11.8%+5.8%
Drawdown
Index fall to the buffer2.6%1.2%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.50%0.69%
Net assets$38m$50m
Holdings
Holdings in commonnot published

Method

Window by window

Window by window: AUGP vs CPSA: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowAUGPCPSAAUGPCPSA
3 months+0.7%+0.6%+1.1 pts+1.0 pts
6 months+5.2%+2.6%+0.8 pts−1.9 pts
1 year+11.8%+5.8%−1.7 pts−7.8 pts
Since launchNot the same days: AUGP May 2024 · CPSA Aug 2024+36.4%+16.6%−10.8 pts−24.6 pts

Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. Open this comparison in the app →

Side by side

AUGP PGIM S&P 500 Buffer 12 ETF - August · Absorbs the first 12% of loss on SPY and caps the gain at 15.7%, over a period ending Jul 31, 2027 CPSA Calamos S&P 500 Structured Alt Protection ETF - August · Absorbs the whole loss on SPY and caps the gain at 7.8%, over a period ending Jul 30, 2027
Issuer PGIM Calamos
Reference index SPY SPY
Buffer 12% 100%
Outcome period Aug 1, 2026 to Jul 31, 2027 Aug 3, 2026 to Jul 30, 2027
Days left 269 268
Starting cap +15.7% +7.8%
Can still gain 12.5% not published
Fall before buffer 2.8% 1.3%
Protection left, index points 12.0% of 12.0% 100.0% of 100.0%
Index return this period +2.6% +1.2%
Fund return this period +2.4% +1.2%
State today Open Open
Expense ratio 0.50% 0.69%
Net assets $38m $50m

As of Nov 4, 2026. Source: ETFIQ.

These are two different products. CPSA is a floor fund, which caps how far a holder can fall. AUGP 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

CPSA resets first, on Jul 30, 2027, 268 days from now; AUGP runs to Jul 31, 2027, 269 days. A fall from here reaches AUGP’s buffer after 2.8% and CPSA’s after 1.3%. Both track SPY, so what separates them is where each is in its own period.

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About each fund
AUGP

From its price on Nov 4, 2026, the fund can gain about 12.5% more before it reaches its cap. The fund's price can fall 2.8% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 2.6% from today's level to the point where the buffer begins. Protection left, in index points: 12.0% of the 12.0% buffer still sits below today's SPY level. 269 days remained on Nov 4, 2026. On Jul 31, 2027 the period ends and a new cap is set.

CPSA

The fund's price can fall 1.3% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 1.2% 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. 268 days remained on Nov 4, 2026. On Jul 30, 2027 the period ends and a new cap is set.

Questions people ask

Which resets first, AUGP or CPSA?
AUGP ends its outcome period on Jul 31, 2027 and CPSA on Jul 30, 2027. A new cap is set the day after each.
Which is cheaper, AUGP or CPSA?
AUGP charges 0.50% a year and CPSA charges 0.69%, so AUGP is cheaper. Fees come from each fund's prospectus.
Other comparisons
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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, AUGP against CPSA, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/augp-vs-cpsa

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