Data as of Nov 4, 2026.

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Buffer ETFs

AUGC vs CPSA: Cap, Buffer & Days Left

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CPSA can fall 1.3% before its buffer engages as of Nov 4, 2026, and AUGC 0.0% as of Nov 3, 2026.

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Net assets on Nov 4, 2026: $508,452 for Corgi U.S. Equities 10% Structured Buffer ETF - August Series and $50m for Calamos S&P 500 Structured Alt Protection ETF - August.

At a glance
AUGC Buffer working
Buffer workingAUGC: reference −0.4% since period start, fund +0.4%; buffer 0 to −10; cap +18.0%; Buffer working. Data to Nov 3, 2026.9.6 pts+18% more to the cap−10.0% floor0% period start+18.0% capTODAY · SPY −0.4%Buffer workingAUGC: reference −0.4% since period start, fund +0.4%; buffer 0 to −10; cap +18.0%; Buffer working. Data to Nov 3, 2026.−10.0% floor0% start+18.0% cap9.6 of 10 pts of buffer left+18% more to the capTODAY · SPY −0.4%

AUGC: reference −0.4% since period start, fund +0.4%; buffer 0 to −10; cap +18.0%; Buffer working. Data to Nov 3, 2026.

AUGC: reference −0.4% since period start, fund +0.4%; buffer 0 to −10; cap +18.0%; Buffer working. Data to Nov 3, 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

AUGC costs 0.39 points a year less.

Points (pts) are percentage points.

AUGC vs CPSA: Cap, Buffer & Days Left
MeasureAUGCCPSA
Return
Total return, 1 yearnot published+5.8%
Drawdown
Index fall to the buffer1.2%
Benchmark
What it tracksSPYSPY
Cost and size
Expense ratio0.30%0.69%
Net assets$508,452$50m
Holdings
Holdings in commonnot published

Method

Window by window

Window by window: AUGC vs CPSA: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowAUGCCPSAAUGCCPSA
3 months+0.1%+0.6%+0.5 pts+1.0 pts
6 months–+2.6%–−1.9 pts
1 year–+5.8%–−7.8 pts
Since launchNot the same days: AUGC Aug 2026 · CPSA Aug 2024+0.2%+16.6%+0.8 pts−24.6 pts

Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. – means no data for this window. Open this comparison in the app →

Side by side

AUGC Corgi U.S. Equities 10% Structured Buffer ETF - August Series · Absorbs the first 10% of loss on SPY and caps the gain at 18.0%, 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 Corgi Calamos
Reference index SPY SPY
Buffer 10% 100%
Outcome period Aug 1, 2026 to Jul 31, 2027 Aug 3, 2026 to Jul 30, 2027
Days left 270 268
Starting cap +18.0% +7.8%
Can still gain not published not published
Fall before buffer 0.0% 1.3%
Protection left, index points 9.6% of 10.0% 100.0% of 100.0%
Index return this period −0.4% +1.2%
Fund return this period +0.4% +1.2%
State today Buffer working Open
Expense ratio 0.30% 0.69%
Net assets $508,452 $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. AUGC 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; AUGC runs to Jul 31, 2027, 270 days. A fall from here reaches AUGC’s buffer after 0.0% 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
AUGC

Protection left, in index points: 9.6% of the 10.0% buffer still sits below today's SPY level. 270 days remained on Nov 3, 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, AUGC or CPSA?
AUGC 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, AUGC or CPSA?
AUGC charges 0.30% a year and CPSA charges 0.69%, so AUGC 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, AUGC against CPSA, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/augc-vs-cpsa

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