Data as of Nov 4, 2026.
AOCT vs CPSO: Cap, Buffer & Days Left
As of Nov 4, 2026 AOCT can fall 1.1% before its buffer engages and CPSO 0.6%, and CPSO resets 366 days sooner.
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Net assets on Nov 4, 2026: $69m for Innovator Equity Defined Protection ETF - Oct 2028 and $34m for Calamos S&P 500 Structured Alt Protection ETF - October.
AOCT: reference +0.5% since period start, fund +1.0%; buffer Floor; cap +21.3%; Full floor. Data to Nov 4, 2026.
Data to Nov 4, 2026.CPSO: reference +0.4% since period start, fund +0.6%; buffer Floor; cap +8.8%; Full floor. Data to Nov 4, 2026.
Data to Nov 4, 2026.Pair scorecard
CPSO costs 0.10 points a year less; their one-year returns differ by 0.4 points; AOCT is 2.0 times larger.
Points (pts) are percentage points.
| Measure | AOCT | CPSO |
|---|---|---|
| Return | ||
| Total return, 1 year | +6.5% | +6.1% |
| Drawdown | ||
| Index fall to the buffer | 0.5% | 0.4% |
| Benchmark | ||
| What it tracks | SPY | SPY |
| Cost and size | ||
| Expense ratio | 0.79% | 0.69% |
| Net assets | $69m | $34m |
| Holdings | ||
| Holdings in common | not published | |
Window by window
| Total return | Gap to the reference's price return | |||
|---|---|---|---|---|
| Window | AOCT | CPSO | AOCT | CPSO |
| 3 months | +1.7% | +1.4% | +2.1 pts | +1.8 pts |
| 6 months | +3.2% | +3.1% | −1.2 pts | −1.3 pts |
| 1 year | +6.5% | +6.1% | −7.1 pts | −7.5 pts |
| Since launchAOCT Oct 2024 · CPSO Oct 2024 | +12.6% | +12.7% | −22.3 pts | −22.1 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
As of Nov 4, 2026. Source: ETFIQ.
They do not reset together. CPSO has 330 days of its period left and AOCT has 696, so the two are not the same bet on the same months.
Where each one stands today
CPSO resets first, on Sep 30, 2027, 330 days from now; AOCT runs to Sep 30, 2028, 696 days. A fall from here reaches AOCT’s buffer after 1.1% and CPSO’s after 0.6%. Both track SPY, so what separates them is where each is in its own period.
AOCT
From its price on Nov 4, 2026, the fund can gain about 20.0% more before it reaches its cap. The fund's price can fall 1.1% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 0.5% 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. 696 days remained on Nov 4, 2026. On Sep 30, 2028 the period ends and a new cap is set.
CPSO
The fund's price can fall 0.6% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 0.4% from today's level to the point where the buffer begins. 330 days remained on Nov 4, 2026. On Sep 30, 2027 the period ends and a new cap is set.
Questions people ask
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.
Cite this pageCitation, APA and Markdown
ETFIQ, AOCT against CPSO, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/aoct-vs-cpso
ETFIQ. (Nov 4, 2026). AOCT against CPSO. Retrieved from https://etfiq.com/compare/buffer/aoct-vs-cpso
[AOCT against CPSO (ETFIQ, Nov 4, 2026)](https://etfiq.com/compare/buffer/aoct-vs-cpso)
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