CPSO vs DDFO: Cap, Buffer & Days Left

As of Oct 13, 2026 DDFO 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 $143m for Innovator Equity Dual Directional 15 Buffer ETF - Oct.

CPSO costs 0.10 points a year less; their one-year returns differ by 3.3 points; DDFO is 4.7 times larger.

Points (pts) are percentage points.

CPSO vs DDFO: Cap, Buffer & Days Left
CPSODDFO
Expense ratio0.69%0.79%
Net assets, as of Oct 12, 2026$31m$143m
Total return, 1 year+6.4%+9.7%
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 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.

DDFOBetween buffer and cap
Between buffer and capDDFO: reference +1.9% since period start, fund +0.8%; buffer 0 to −15; cap +10.7%; Between buffer and cap. Figures to Oct 13, 2026.15 pts of buffer+8.7% to cap−15.0% floor0% period start+10.7% cap+1.9% gain capturedTODAY · SPY +1.9%Between buffer and capDDFO: reference +1.9% since period start, fund +0.8%; buffer 0 to −15; cap +10.7%; Between buffer and cap. Figures to Oct 13, 2026.15 pts−15.0% floor0% start+10.7% cap+1.9% gain captured+8.7% more to the capTODAY · SPY +1.9%

DDFO: reference +1.9% since period start, fund +0.8%; buffer 0 to −15; cap +10.7%; Between buffer and cap. Figures to Oct 13, 2026.

DDFO: reference +1.9% since period start, fund +0.8%; buffer 0 to −15; cap +10.7%; Between buffer and cap. Figures to Oct 13, 2026.

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

CPSO resets first, on Sep 30, 2027, 352 days from now; DDFO runs to Sep 30, 2027, 352 days. A fall from here reaches CPSO’s buffer after 0.6% and DDFO’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 DDFO: Cap, Buffer & Days Left
Total returnGap to the reference's price return
WindowCPSODDFOCPSODDFO
3 months+2.1%+2.5%−1.8 pts−1.4 pts
6 months+4.4%+5.6%−9.0 pts−7.8 pts
1 year+6.4%+9.7%−12.7 pts−9.4 pts
Since launch
Not the same days: CPSO Oct 2024 · DDFO Oct 2025
+12.8%+8.8%−24.1 pts−7.6 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
DDFO
Innovator Equity Dual Directional 15 Buffer ETF - Oct · Absorbs the first 15% of loss on SPY and caps the gain at 10.7%, over a period ending Sep 30, 2027
Reference index SPY SPY
Buffer 100% 15%
Outcome period Oct 1, 2026 to Sep 30, 2027 Sep 30, 2026 to Sep 30, 2027
Days left 352 352
Starting cap +8.8% +10.7%
Can still gain not published 9.8%
Fall before buffer 0.6% 0.8%
Protection left, index points 100.0% of 100.0% 15.0% of 15.0%
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 $143m

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 DDFO

From its price on Oct 13, 2026, the fund can gain about 9.8% 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. Protection left, in index points: 15.0% of the 15.0% buffer still sits below today's SPY level.

Questions people ask

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

Open data

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