BOCT vs CPSO: Cap, Buffer & Days Left

As of Oct 13, 2026 BOCT can fall 1.5% before its buffer engages and CPSO 0.6%. Net assets on Oct 12, 2026: $307m for Innovator U.S. Equity Buffer ETF - Oct and $31m for Calamos S&P 500 ® Structured Alt Protection ETF - October.

CPSO costs 0.10 points a year less; their one-year returns differ by 10.6 points; BOCT is 10.0 times larger.

Points (pts) are percentage points.

BOCT vs CPSO: Cap, Buffer & Days Left
BOCTCPSO
Expense ratio0.79%0.69%
Net assets, as of Oct 12, 2026$307m$31m
Total return, 1 year+17.0%+6.4%
What it tracksSPYSPY
Holdings in commonnot published
Index fall to the buffer1.9%1.8%
BOCTBetween buffer and cap
Between buffer and capBOCT: reference +1.9% since period start, fund +1.5%; buffer 0 to −9; cap +20.2%; Between buffer and cap. Figures to Oct 13, 2026.9 pts+18.2% more to the cap−9.0% floor0% period start+20.2% cap+1.9% gain capturedTODAY · SPY +1.9%Between buffer and capBOCT: reference +1.9% since period start, fund +1.5%; buffer 0 to −9; cap +20.2%; Between buffer and cap. Figures to Oct 13, 2026.−9.0% floor0% start+20.2% cap9 pts of buffer+1.9% gain captured+18.2% more to the capTODAY · SPY +1.9%

BOCT: reference +1.9% since period start, fund +1.5%; buffer 0 to −9; cap +20.2%; Between buffer and cap. Figures to Oct 13, 2026.

BOCT: reference +1.9% since period start, fund +1.5%; buffer 0 to −9; cap +20.2%; Between buffer and cap. Figures to Oct 13, 2026.

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 beneathfull floor0% period start+8.8% cap+1.9% gain captured+6.9% more to the capTODAY · 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.

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

BOCT resets first, on Sep 30, 2027, 352 days from now; CPSO runs to Sep 30, 2027, 352 days. A fall from here reaches BOCT’s buffer after 1.5% and CPSO’s after 0.6%. Both track SPY, so what separates them is where each is in its own period.

Performance, window by window

Performance, window by window: BOCT vs CPSO: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowBOCTCPSOBOCTCPSO
3 months+4.9%+2.1%+1.0 pts−1.8 pts
6 months+11.8%+4.4%−1.6 pts−9.0 pts
1 year+17.0%+6.4%−2.2 pts−12.7 pts
3 years+56.4%not published−23.9 ptsnot published
Since launch
Not the same days: BOCT Oct 2018 · CPSO Oct 2024
+127.5%+12.8%−39.2 pts−24.1 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

BOCT
Innovator U.S. Equity Buffer ETF - Oct · Absorbs the first 9% of loss on SPY and caps the gain at 20.2%, over a period ending Sep 30, 2027
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
Reference index SPY SPY
Buffer 9% 100%
Outcome period Sep 30, 2026 to Sep 30, 2027 Oct 1, 2026 to Sep 30, 2027
Days left 352 352
Starting cap +20.2% +8.8%
Can still gain 18.4% not published
Fall before buffer 1.5% 0.6%
Protection left, index points 9.0% of 9.0% 100.0% of 100.0%
Index return this period +1.9% +1.9%
Fund return this period +1.5% +0.6%
State today Open Open
Expense ratio 0.79% 0.69%
Net assets, as of Oct 12, 2026 $307m $31m

As of Oct 13, 2026. Source: ETFIQ.

About BOCT

From its price on Oct 13, 2026, the fund can gain about 18.4% more before it reaches its cap. The fund's price can fall 1.5% 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. Protection left, in index points: 9.0% of the 9.0% 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 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.

Questions people ask

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

Open data

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