CPSO vs ZOCT: Cap, Buffer & Days Left

As of Oct 13, 2026 ZOCT can fall 0.8% before its buffer engages and CPSO 0.6%. Net assets on Oct 12, 2026: $31m for Calamos S&P 500 ® Structured Alt Protection ETF - October and $189m for Innovator Equity Defined Protection ETF - 1 Yr October.

CPSO costs 0.10 points a year less; their one-year returns differ by 0.3 points; ZOCT is 6.2 times larger.

Points (pts) are percentage points.

CPSO vs ZOCT: Cap, Buffer & Days Left
CPSOZOCT
Expense ratio0.69%0.79%
Net assets, as of Oct 12, 2026$31m$189m
Total return, 1 year+6.4%+6.7%
What it tracksSPYSPY
Holdings in commonnot published
Index fall to the buffer1.8%1.9%
CPSOFull floor
Full floorCPSO: reference +1.9% since period start, fund +0.6%; buffer Floor; cap +8.8%; Full floor. Figures to Oct 13, 2026.full floor beneath+6.9% to capfull floor0% period start+8.8% cap+1.9% gain capturedTODAY · SPY +1.9%Full floorCPSO: reference +1.9% since period start, fund +0.6%; buffer Floor; cap +8.8%; Full floor. Figures to Oct 13, 2026.full floor beneathfull floor0% start+8.8% cap+1.9% gain captured+6.9% more to the capTODAY · SPY +1.9%

CPSO: reference +1.9% since period start, fund +0.6%; buffer Floor; cap +8.8%; Full floor. Figures to Oct 13, 2026.

Figures to Oct 13, 2026.

ZOCTFull floor
Full floorZOCT: reference +1.9% since period start, fund +0.8%; buffer Floor; cap +9.4%; Full floor. Figures to Oct 13, 2026.full floor beneath+7.5% to capfull floor0% period start+9.4% cap+1.9% gain capturedTODAY · SPY +1.9%Full floorZOCT: reference +1.9% since period start, fund +0.8%; buffer Floor; cap +9.4%; Full floor. Figures to Oct 13, 2026.full floor beneathfull floor0% start+9.4% cap+1.9% gain captured+7.5% more to the capTODAY · SPY +1.9%

ZOCT: reference +1.9% since period start, fund +0.8%; buffer Floor; cap +9.4%; Full floor. Figures to Oct 13, 2026.

Figures to Oct 13, 2026.

Where each one stands today

CPSO resets first, on Sep 30, 2027, 352 days from now; ZOCT runs to Sep 30, 2027, 352 days. A fall from here reaches CPSO’s buffer after 0.6% and ZOCT’s after 0.8%. Both track SPY, so what separates them is where each is in its own period.

Performance, window by window

Performance, window by window: CPSO vs ZOCT: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowCPSOZOCTCPSOZOCT
3 months+2.1%+2.3%−1.8 pts−1.6 pts
6 months+4.4%+4.5%−9.0 pts−8.9 pts
1 year+6.4%+6.7%−12.7 pts−12.5 pts
Since launch
CPSO Oct 2024 · ZOCT Oct 2024
+12.8%+12.8%−24.1 pts−24.0 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

CPSO
Calamos S&P 500 ® Structured Alt Protection ETF - October · Absorbs the whole loss on SPY and caps the gain at 8.8%, over a period ending Sep 30, 2027
ZOCT
Innovator Equity Defined Protection ETF - 1 Yr October · Absorbs the whole loss on SPY and caps the gain at 9.4%, over a period ending Sep 30, 2027
Reference index SPY SPY
Buffer 100% 100%
Outcome period Oct 1, 2026 to Sep 30, 2027 Sep 30, 2026 to Sep 30, 2027
Days left 352 352
Starting cap +8.8% +9.4%
Can still gain not published 8.5%
Fall before buffer 0.6% 0.8%
Protection left, index points 100.0% of 100.0% 100.0% of 100.0%
Index return this period +1.9% +1.9%
Fund return this period +0.6% +0.8%
State today Open Open
Expense ratio 0.69% 0.79%
Net assets, as of Oct 12, 2026 $31m $189m

As of Oct 13, 2026. Source: ETFIQ.

About CPSO

The fund's price can fall 0.6% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 1.8% 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. 352 days remained on Oct 13, 2026. On Sep 30, 2027 the period ends and a new cap is set.

About ZOCT

From its price on Oct 13, 2026, the fund can gain about 8.5% more before it reaches its cap. The fund's price can fall 0.8% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 1.9% from today's level to the point where the buffer begins.

Questions people ask

Which resets first, CPSO or ZOCT?
CPSO ends its outcome period on Sep 30, 2027 and ZOCT on Sep 30, 2027. A new cap is set the day after each.
Which is cheaper, CPSO or ZOCT?
CPSO charges 0.69% a year and ZOCT charges 0.79%, so CPSO 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, CPSO against ZOCT, data as of Oct 13, 2026. https://etfiq.com/compare/buffer/cpso-vs-zoct

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.