CBOX vs. XBOX

Last updated Aug 1, 2026

CBOX (Calamos Tax-Aware Collateral ETF) and XBOX (Roundhill Ultra Short Duration No Dividend Target ETF) are both exchange-traded funds - CBOX is a Options Trading fund actively managed by Calamos, while XBOX is a Ultrashort Bond fund actively managed by Roundhill. Both are actively managed. Their 0.05 correlation means their historical movements had little consistent relationship. Both charge a 0.14% expense ratio.

Performance

CBOX vs. XBOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Tax-Aware Collateral ETF (CBOX) and Roundhill Ultra Short Duration No Dividend Target ETF (XBOX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

CBOX

• 1D: 0.00%
• 1M: 0.40%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

XBOX

• 1D: 0.02%
• 1M: 0.36%
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

*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)
CBOX Calamos Tax-Aware Collateral ETF	$7.89M	$8.89M	$7.14M
XBOX Roundhill Ultra Short Duration No Dividend Target ETF	$17.25M	$10.21M	$6.96M

CBOX vs. XBOX - Yearly Performance Comparison

	2026 (YTD)
CBOX Calamos Tax-Aware Collateral ETF	1.12%
XBOX Roundhill Ultra Short Duration No Dividend Target ETF	1.24%

Correlation

The correlation between CBOX and XBOX is 0.05, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.

	Correlation
Correlation (All Time) Calculated using the full available price history since Apr 17, 2026	0.05

Return for Risk

CBOX vs. XBOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Tax-Aware Collateral ETF (CBOX) and Roundhill Ultra Short Duration No Dividend Target ETF (XBOX). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Drawdowns

CBOX vs. XBOX - Drawdown Comparison

The maximum CBOX drawdown since its inception was -2.90%, which is greater than XBOX's maximum drawdown of -0.83%. Use the drawdown chart below to compare losses from any high point for CBOX and XBOX.

Drawdown Indicators

	CBOX	XBOX	Difference
Max Drawdown Largest peak-to-trough decline	-2.90%	-0.83%	-2.07%
Current Drawdown Current decline from peak	-2.30%	0.00%	-2.30%
Average Drawdown Average peak-to-trough decline	-1.47%	-0.08%	-1.39%

Volatility

Volatility by Period

	CBOX	XBOX	Difference
Volatility (1Y) Calculated over the trailing 1-year period	7.83%	2.17%	+5.66%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.83%	2.17%	+5.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.83%	2.17%	+5.66%

CBOX vs. XBOX - Expense Ratio Comparison

Both CBOX and XBOX have an expense ratio of 0.14%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

CBOX vs. XBOX - Dividend Comparison

Neither CBOX nor XBOX has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both CBOX and XBOX in my portfolio?

CBOX and XBOX have a correlation of 0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CBOX or XBOX?

Both ETFs have the same 0.14% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, CBOX or XBOX?

CBOX and XBOX have the same expense ratio: 0.14% per year.

Which ETF pays a higher dividend yield, CBOX or XBOX?

CBOX and XBOX have nearly identical dividend yields, around 0.00%.

What is the main difference between CBOX and XBOX?

CBOX is categorized as Options Trading, while XBOX is Ultrashort Bond. They also come from different issuers: Calamos and Roundhill.