CPNS vs. RSBY

Last updated Jul 12, 2026

CPNS (Calamos Nasdaq-100 Structured Alt Protection ETF - September) and RSBY (Return Stacked Bonds & Futures Yield ETF) are both exchange-traded funds - CPNS is a Defined Outcome fund tracking the MerQube Cap Protect US Large Cap Tech PR Index - Sep, while RSBY is a Multistrategy fund actively managed by Return Stacked. CPNS is passively managed, while RSBY is actively managed. Over the past year, CPNS returned 6.60% vs 17.35% for RSBY. At a correlation of -0.19, they often move in opposite directions. CPNS charges 0.69%/yr vs 0.98%/yr for RSBY.

Performance

CPNS vs. RSBY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS) and Return Stacked Bonds & Futures Yield ETF (RSBY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CPNS achieves a 3.49% return, which is significantly lower than RSBY's 18.52% return.

CPNS

• 1D: 0.11%
• 1M: 0.47%
• 6M: 3.12%
• YTD: 3.49%
• 1Y: 6.60%
• 3Y*: —
• 5Y*: —
• 10Y*: —

RSBY

• 1D: -0.60%
• 1M: -0.71%
• 6M: 17.92%
• YTD: 18.52%
• 1Y: 17.35%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CPNS vs. RSBY - Yearly Performance Comparison

	2026 (YTD)	2025	2024
CPNS Calamos Nasdaq-100 Structured Alt Protection ETF - September	3.49%	7.25%	1.93%
RSBY Return Stacked Bonds & Futures Yield ETF	18.52%	-12.98%	-6.91%

Correlation

The correlation between CPNS and RSBY is -0.19, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.19
Correlation (All Time) Calculated using the full available price history since Sep 3, 2024	-0.19

Return for Risk

CPNS vs. RSBY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

CPNS

CPNS Risk / Return Rank: 95
CPNS Sharpe Ratio Rank: 96
CPNS Sortino Ratio Rank: 96
CPNS Omega Ratio Rank: 96
CPNS Calmar Ratio Rank: 93
CPNS Martin Ratio Rank: 96

RSBY

RSBY Risk / Return Rank: 51
RSBY Sharpe Ratio Rank: 55
RSBY Sortino Ratio Rank: 57
RSBY Omega Ratio Rank: 51
RSBY Calmar Ratio Rank: 54
RSBY Martin Ratio Rank: 40

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

CPNS vs. RSBY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS) and Return Stacked Bonds & Futures Yield ETF (RSBY). 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.

	CPNS	RSBY	Difference
Sharpe ratio: Return per unit of total volatility	3.15	1.50	+1.65
Sortino ratio: Return per unit of downside risk	4.77	2.18	+2.59
Omega ratio: Gain probability vs. loss probability	1.67	1.26	+0.42
Calmar ratio: Return relative to maximum drawdown	5.06	2.15	+2.91
Martin ratio: Return relative to average drawdown	27.22	5.04	+22.18

CPNS vs. RSBY - Sharpe Ratio Comparison

The current CPNS Sharpe Ratio is 3.15, which is higher than the RSBY Sharpe Ratio of 1.50. The chart below compares the historical Sharpe Ratios of CPNS and RSBY, 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

CPNS vs. RSBY - Drawdown Comparison

The maximum CPNS drawdown since its inception was -3.99%, smaller than the maximum RSBY drawdown of -23.32%. Use the drawdown chart below to compare losses from any high point for CPNS and RSBY.

Drawdown Indicators

	CPNS	RSBY	Difference
Max Drawdown Largest peak-to-trough decline	-3.99%	-23.32%	+19.33%
Max Drawdown (1Y) Largest decline over 1 year	-1.31%	-7.95%	+6.64%
Current Drawdown Current decline from peak	0.00%	-6.45%	+6.45%
Average Drawdown Average peak-to-trough decline	-0.35%	-13.35%	+13.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.24%	3.39%	-3.15%

Volatility

CPNS vs. RSBY - Volatility Comparison

The current volatility for Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS) is 0.51%, while Return Stacked Bonds & Futures Yield ETF (RSBY) has a volatility of 3.15%. This indicates that CPNS experiences smaller price fluctuations and is considered to be less risky than RSBY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CPNS	RSBY	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.51%	3.15%	-2.64%
Volatility (6M) Calculated over the trailing 6-month period	1.75%	8.37%	-6.62%
Volatility (1Y) Calculated over the trailing 1-year period	2.11%	11.41%	-9.30%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.47%	13.37%	-9.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.47%	13.37%	-9.90%

CPNS vs. RSBY - Expense Ratio Comparison

CPNS has a 0.69% expense ratio, which is lower than RSBY's 0.98% expense ratio.

Dividends

CPNS vs. RSBY - Dividend Comparison

CPNS has not paid dividends to shareholders, while RSBY's dividend yield for the trailing twelve months is around 1.75%.

Position	TTM	2025	2024
CPNS Calamos Nasdaq-100 Structured Alt Protection ETF - September	0.00%	0.00%	0.00%
RSBY Return Stacked Bonds & Futures Yield ETF	1.75%	2.07%	2.29%

Frequently Asked Questions

Can I hold both CPNS and RSBY in my portfolio?

CPNS and RSBY have a correlation of -0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CPNS or RSBY?

RSBY has higher volatility (3.15%) compared to CPNS (0.51%). In terms of maximum drawdown, CPNS dropped -3.99% vs RSBY's -23.32%.

Which ETF is better, CPNS or RSBY?

On 1-year performance, RSBY leads with 17.35% vs 6.60% for CPNS. On fees, CPNS is cheaper at 0.69% per year. On volatility, CPNS has been the lower-risk option at 0.51%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CPNS or RSBY?

Over the 1-year period, RSBY has performed better with a 17.35% return vs 6.60%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CPNS or RSBY?

CPNS is cheaper with a 0.69% expense ratio, compared with 0.98% for RSBY.

Which ETF pays a higher dividend yield, CPNS or RSBY?

RSBY has the higher dividend yield at 1.75%, compared with 0.00% for CPNS.

What is the main difference between CPNS and RSBY?

CPNS is categorized as Defined Outcome, while RSBY is Multistrategy. They also come from different issuers: Calamos and Return Stacked. Their fees differ too: 0.69% for CPNS and 0.98% for RSBY.

Which has better risk-adjusted returns?

CPNS currently has the higher Sharpe Ratio (3.15 vs 1.50), 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.