KOCT vs. CPRA

Last updated Aug 2, 2026

KOCT (Innovator U.S. Small Cap Power Buffer ETF - October) and CPRA (Calamos Russell 2000 Structured Alt Protection ETF - April) are both Defined Outcome funds. KOCT is passively managed, while CPRA is actively managed. Over the past year, KOCT returned 23.07% vs 8.87% for CPRA. Their correlation of 0.86 means they have usually moved in the same direction. KOCT charges 0.79%/yr vs 0.69%/yr for CPRA.

Performance

KOCT vs. CPRA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Innovator U.S. Small Cap Power Buffer ETF - October (KOCT) and Calamos Russell 2000 Structured Alt Protection ETF - April (CPRA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, KOCT achieves a 11.23% return, which is significantly higher than CPRA's 4.58% return.

KOCT

• 1D: 0.00%
• 1M: 0.39%
• 6M: 8.57%
• YTD: 11.23%
• 1Y: 23.07%
• 3Y*: 9.89%
• 5Y*: 6.87%
• 10Y*: —
• ALL TIME*: 6.51%

CPRA

• 1D: -0.02%
• 1M: 0.32%
• 6M: 3.95%
• YTD: 4.58%
• 1Y: 8.87%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 8.76%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
CPRA Calamos Russell 2000 Structured Alt Protection ETF - April	$23.06K	$26.22K	$32.24K
KOCT Innovator U.S. Small Cap Power Buffer ETF - October	$1.75M	$948.54K	$494.45K

KOCT vs. CPRA - Yearly Performance Comparison

	2026 (YTD)	2025
KOCT Innovator U.S. Small Cap Power Buffer ETF - October	11.23%	15.04%
CPRA Calamos Russell 2000 Structured Alt Protection ETF - April	4.58%	6.93%

Correlation

The correlation between KOCT and CPRA is 0.85, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.85
Correlation (All Time) Calculated using the full available price history since Apr 1, 2025	0.86

The correlation between KOCT and CPRA has been stable across timeframes, ranging from 0.85 to 0.86 - a consistent structural relationship.

Return for Risk

KOCT vs. CPRA — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

KOCT

KOCT Risk / Return Rank: 91
KOCT Sharpe Ratio Rank: 89
KOCT Sortino Ratio Rank: 91
KOCT Omega Ratio Rank: 89
KOCT Calmar Ratio Rank: 93
KOCT Martin Ratio Rank: 93

CPRA

CPRA Risk / Return Rank: 98
CPRA Sharpe Ratio Rank: 98
CPRA Sortino Ratio Rank: 98
CPRA Omega Ratio Rank: 98
CPRA Calmar Ratio Rank: 98
CPRA Martin Ratio Rank: 98

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

KOCT vs. CPRA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Innovator U.S. Small Cap Power Buffer ETF - October (KOCT) and Calamos Russell 2000 Structured Alt Protection ETF - April (CPRA). 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.

	KOCT	CPRA	Difference
Sharpe ratio: Return per unit of total volatility	2.17	3.96	-1.79
Sortino ratio: Return per unit of downside risk	3.31	6.87	-3.56
Omega ratio: Gain probability vs. loss probability	1.40	1.95	-0.55
Calmar ratio: Return relative to maximum drawdown	4.45	9.57	-5.12
Martin ratio: Return relative to average drawdown	16.72	54.79	-38.08

KOCT vs. CPRA - Sharpe Ratio Comparison

The current KOCT Sharpe Ratio is 2.17, which is lower than the CPRA Sharpe Ratio of 3.96. The chart below compares the historical Sharpe Ratios of KOCT and CPRA, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

KOCT vs. CPRA - Drawdown Comparison

The maximum KOCT drawdown since its inception was -28.22%, which is greater than CPRA's maximum drawdown of -1.69%. Use the drawdown chart below to compare losses from any high point for KOCT and CPRA.

Drawdown Indicators

	KOCT	CPRA	Difference
Max Drawdown Largest peak-to-trough decline	-28.22%	-1.69%	-26.53%
Max Drawdown (1Y) Largest decline over 1 year	-4.95%	-0.89%	-4.06%
Max Drawdown (3Y) Largest decline over 3 years	-15.03%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-16.63%	—	—
Current Drawdown Current decline from peak	-0.11%	-0.02%	-0.09%
Average Drawdown Average peak-to-trough decline	-4.15%	-0.14%	-4.01%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.32%	0.16%	+1.16%

Volatility

KOCT vs. CPRA - Volatility Comparison

Innovator U.S. Small Cap Power Buffer ETF - October (KOCT) has a higher volatility of 1.35% compared to Calamos Russell 2000 Structured Alt Protection ETF - April (CPRA) at 0.44%. This indicates that KOCT's price experiences larger fluctuations and is considered to be riskier than CPRA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	KOCT	CPRA	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.35%	0.44%	+0.91%
Volatility (6M) Calculated over the trailing 6-month period	6.51%	1.36%	+5.15%
Volatility (1Y) Calculated over the trailing 1-year period	10.18%	2.16%	+8.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.29%	2.71%	+9.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.46%	2.71%	+11.75%

KOCT vs. CPRA - Expense Ratio Comparison

KOCT has a 0.79% expense ratio, which is higher than CPRA's 0.69% expense ratio.

Dividends

KOCT vs. CPRA - Dividend Comparison

Neither KOCT nor CPRA has paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019
CPRA Calamos Russell 2000 Structured Alt Protection ETF - April	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
KOCT Innovator U.S. Small Cap Power Buffer ETF - October	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.79%

Frequently Asked Questions

Can I hold both KOCT and CPRA in my portfolio?

KOCT and CPRA have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, KOCT or CPRA?

KOCT has higher volatility (1.35%) compared to CPRA (0.44%). In terms of maximum drawdown, KOCT dropped -28.22% vs CPRA's -1.69%.

Which ETF is better, KOCT or CPRA?

On 1-year performance, KOCT leads with 23.07% vs 8.87% for CPRA. On fees, CPRA is cheaper at 0.69% per year. On volatility, CPRA has been the lower-risk option at 0.44%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, KOCT or CPRA?

Over the 1-year period, KOCT has performed better with a 23.07% return vs 8.87%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, KOCT or CPRA?

CPRA is cheaper with a 0.69% expense ratio, compared with 0.79% for KOCT.

Which ETF pays a higher dividend yield, KOCT or CPRA?

KOCT and CPRA have nearly identical dividend yields, around 0.00%.

What is the main difference between KOCT and CPRA?

They also come from different issuers: Innovator and Calamos. Their fees differ too: 0.79% for KOCT and 0.69% for CPRA.

Which has better risk-adjusted returns?

CPRA currently has the higher Sharpe Ratio (3.96 vs 2.17), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.