CBOJ vs. RBIL

Last updated Jun 4, 2026

CBOJ (Calamos Bitcoin Structured Alt Protection ETF - January) and RBIL (F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF) are both exchange-traded funds - CBOJ is a Defined Outcome fund tracking the CBOE Bitcoin US ETF Index, while RBIL is a Inflation-Protected Bonds fund tracking the Bloomberg US Ultrashort TIPS 1-13 Months Index. Both are passively managed. Over the past year, CBOJ returned -3.88% vs 4.57% for RBIL. At a correlation of -0.06, they often move in opposite directions. CBOJ charges 0.69%/yr vs 0.17%/yr for RBIL.

Performance

CBOJ vs. RBIL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) and F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CBOJ achieves a -1.37% return, which is significantly lower than RBIL's 2.70% return.

CBOJ

• 1D: -0.18%
• 1M: -1.59%
• YTD: -1.37%
• 6M: -2.70%
• 1Y: -3.88%
• 3Y*: —
• 5Y*: —
• 10Y*: —

RBIL

• 1D: 0.06%
• 1M: 0.38%
• YTD: 2.70%
• 6M: 2.79%
• 1Y: 4.57%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CBOJ vs. RBIL - Yearly Performance Comparison

	2026 (YTD)	2025
CBOJ Calamos Bitcoin Structured Alt Protection ETF - January	-1.37%	-0.05%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	2.70%	2.91%

Correlation

The correlation between CBOJ and RBIL is -0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.07
Correlation (All Time) Calculated using the full available price history since Feb 26, 2025	-0.06

Return for Risk

CBOJ vs. RBIL — Risk / Return Rank

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

CBOJ

CBOJ Risk / Return Rank: 4
CBOJ Sharpe Ratio Rank: 3
CBOJ Sortino Ratio Rank: 3
CBOJ Omega Ratio Rank: 3
CBOJ Calmar Ratio Rank: 5
CBOJ Martin Ratio Rank: 5

RBIL

RBIL Risk / Return Rank: 98
RBIL Sharpe Ratio Rank: 97
RBIL Sortino Ratio Rank: 98
RBIL Omega Ratio Rank: 98
RBIL Calmar Ratio Rank: 98
RBIL Martin Ratio Rank: 98

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.

CBOJ vs. RBIL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) and F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL). 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.

	CBOJ	RBIL	Difference
Sharpe ratio: Return per unit of total volatility	-0.78	5.01	-5.80
Sortino ratio: Return per unit of downside risk	-1.05	7.92	-8.97
Omega ratio: Gain probability vs. loss probability	0.88	2.39	-1.51
Calmar ratio: Return relative to maximum drawdown	-0.48	17.00	-17.48
Martin ratio: Return relative to average drawdown	-0.77	70.66	-71.43
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CBOJ vs. RBIL - Sharpe Ratio Comparison

The current CBOJ Sharpe Ratio is -0.78, which is lower than the RBIL Sharpe Ratio of 5.01. The chart below compares the historical Sharpe Ratios of CBOJ and RBIL, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	CBOJ	RBIL	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.78	5.01	-5.80
Sharpe Ratio (All Time) Calculated using the full available price history	-0.35	4.28	-4.63

Drawdowns

CBOJ vs. RBIL - Drawdown Comparison

The maximum CBOJ drawdown since its inception was -8.13%, which is greater than RBIL's maximum drawdown of -0.50%. Use the drawdown chart below to compare losses from any high point for CBOJ and RBIL.

Drawdown Indicators

	CBOJ	RBIL	Difference
Max Drawdown Largest peak-to-trough decline	-8.13%	-0.50%	-7.63%
Max Drawdown (1Y) Largest decline over 1 year	-8.13%	-0.27%	-7.86%
Current Drawdown Current decline from peak	-7.70%	0.00%	-7.70%
Average Drawdown Average peak-to-trough decline	-3.13%	-0.06%	-3.07%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.04%	0.07%	+4.97%

Volatility

CBOJ vs. RBIL - Volatility Comparison

Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) has a higher volatility of 0.84% compared to F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF (RBIL) at 0.30%. This indicates that CBOJ's price experiences larger fluctuations and is considered to be riskier than RBIL based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CBOJ	RBIL	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.84%	0.30%	+0.54%
Volatility (6M) Calculated over the trailing 6-month period	2.50%	0.79%	+1.71%
Volatility (1Y) Calculated over the trailing 1-year period	4.97%	0.92%	+4.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.58%	1.05%	+3.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.58%	1.05%	+3.53%

CBOJ vs. RBIL - Expense Ratio Comparison

CBOJ has a 0.69% expense ratio, which is higher than RBIL's 0.17% expense ratio.

Dividends

CBOJ vs. RBIL - Dividend Comparison

CBOJ's dividend yield for the trailing twelve months is around 3.20%, less than RBIL's 4.60% yield.

Position	TTM	2025
CBOJ Calamos Bitcoin Structured Alt Protection ETF - January	3.20%	3.16%
RBIL F/m Ultrashort Treasury Inflation-Protected Security (TIPS) ETF	4.60%	3.65%

Frequently Asked Questions

Can I hold both CBOJ and RBIL in my portfolio?

CBOJ and RBIL have a correlation of -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CBOJ or RBIL?

CBOJ has higher volatility (0.84%) compared to RBIL (0.30%). In terms of maximum drawdown, CBOJ dropped -8.13% vs RBIL's -0.50%.

Which ETF is better, CBOJ or RBIL?

On 1-year performance, RBIL leads with 4.57% vs -3.88% for CBOJ. On fees, RBIL is cheaper at 0.17% per year. On volatility, RBIL has been the lower-risk option at 0.30%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CBOJ or RBIL?

Over the 1-year period, RBIL has performed better with a 4.57% return vs -3.88%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CBOJ or RBIL?

RBIL is cheaper with a 0.17% expense ratio, compared with 0.69% for CBOJ.

Which ETF pays a higher dividend yield, CBOJ or RBIL?

RBIL has the higher dividend yield at 4.60%, compared with 3.20% for CBOJ.

What is the main difference between CBOJ and RBIL?

CBOJ is categorized as Defined Outcome, while RBIL is Inflation-Protected Bonds. CBOJ tracks CBOE Bitcoin US ETF Index, while RBIL tracks Bloomberg US Ultrashort TIPS 1-13 Months Index. They also come from different issuers: Calamos and F/m. Their fees differ too: 0.69% for CBOJ and 0.17% for RBIL.

Which has better risk-adjusted returns?

RBIL currently has the higher Sharpe Ratio (5.01 vs -0.78), 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.