OCTB vs. CPNM
OCTB (Aptus October Buffer ETF) and CPNM (Calamos Nasdaq-100 Structured Alt Protection ETF - March) are both Defined Outcome funds. OCTB is actively managed, while CPNM is passively managed. Their correlation of 0.81 suggests significant overlap in exposure. OCTB charges 0.25%/yr vs 0.69%/yr for CPNM.
Performance
OCTB vs. CPNM - Performance Comparison
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Returns By Period
In the year-to-date period, OCTB achieves a 5.52% return, which is significantly higher than CPNM's 2.69% return.
OCTB
- 1D
- -0.56%
- 1M
- 0.00%
- YTD
- 5.52%
- 6M
- 5.21%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
CPNM
- 1D
- -0.19%
- 1M
- 0.02%
- YTD
- 2.69%
- 6M
- 3.03%
- 1Y
- 7.22%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
OCTB vs. CPNM - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
OCTB Aptus October Buffer ETF | 5.52% | 2.37% |
CPNM Calamos Nasdaq-100 Structured Alt Protection ETF - March | 2.69% | 1.50% |
Correlation
The correlation between OCTB and CPNM is 0.81, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Oct 14, 2025 | 0.81 |
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Return for Risk
OCTB vs. CPNM — Risk / Return Rank
OCTB
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
CPNM
OCTB vs. CPNM - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Aptus October Buffer ETF (OCTB) and Calamos Nasdaq-100 Structured Alt Protection ETF - March (CPNM). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| OCTB | CPNM | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.79 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 7.03 | — |
| Martin ratioReturn relative to average drawdown | — | 37.63 | — |
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Drawdowns
OCTB vs. CPNM - Drawdown Comparison
The maximum OCTB drawdown since its inception was -4.79%, which is greater than CPNM's maximum drawdown of -2.19%. Use the drawdown chart below to compare losses from any high point for OCTB and CPNM.
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Drawdown Indicators
| OCTB | CPNM | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -4.79% | -2.19% | -2.60% |
Max Drawdown (1Y)Largest decline over 1 year | — | -1.03% | — |
Current DrawdownCurrent decline from peak | -0.82% | -0.34% | -0.48% |
Average DrawdownAverage peak-to-trough decline | -0.69% | -0.22% | -0.47% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.19% | — |
Volatility
OCTB vs. CPNM - Volatility Comparison
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Volatility by Period
| OCTB | CPNM | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 0.71% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 1.50% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 7.26% | 2.00% | +5.26% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 7.26% | 2.84% | +4.42% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 7.26% | 2.84% | +4.42% |
OCTB vs. CPNM - Expense Ratio Comparison
OCTB has a 0.25% expense ratio, which is lower than CPNM's 0.69% expense ratio.
Dividends
OCTB vs. CPNM - Dividend Comparison
Neither OCTB nor CPNM has paid dividends to shareholders.
Frequently Asked Questions
OCTB and CPNM have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, OCTB is cheaper at 0.25% per year. The better choice depends on whether you care most about return, fees, risk, or income.
OCTB is cheaper with a 0.25% expense ratio, compared with 0.69% for CPNM.
OCTB and CPNM have nearly identical dividend yields, around 0.00%.
They also come from different issuers: Aptus Capital Advisors and Calamos. Their fees differ too: 0.25% for OCTB and 0.69% for CPNM.
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