COII vs. COSW

Last updated Jun 4, 2026

COII (REX COIN Growth & Income ETF) and COSW (Roundhill COST WeeklyPay ETF) are both Derivative Income funds. Both are actively managed. At a correlation of -0.14, they often move in opposite directions. Both charge a 0.99% expense ratio.

Performance

COII vs. COSW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX COIN Growth & Income ETF (COII) and Roundhill COST WeeklyPay ETF (COSW). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, COII achieves a -37.80% return, which is significantly lower than COSW's 12.13% return.

COII

• 1D: -7.35%
• 1M: -19.57%
• YTD: -37.80%
• 6M: -48.84%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

COSW

• 1D: 0.92%
• 1M: -6.40%
• YTD: 12.13%
• 6M: 2.92%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

COII vs. COSW - Yearly Performance Comparison

	2026 (YTD)	2025
COII REX COIN Growth & Income ETF	-37.80%	-31.38%
COSW Roundhill COST WeeklyPay ETF	12.13%	-10.71%

Correlation

The correlation between COII and COSW is -0.14, 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 (All Time) Calculated using the full available price history since Oct 24, 2025	-0.14

Return for Risk

COII vs. COSW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX COIN Growth & Income ETF (COII) and Roundhill COST WeeklyPay ETF (COSW). 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.

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

Sharpe Ratios by Period

	COII	COSW	Difference
Sharpe Ratio (All Time) Calculated using the full available price history	-0.79	0.01	-0.80

Drawdowns

COII vs. COSW - Drawdown Comparison

The maximum COII drawdown since its inception was -72.22%, which is greater than COSW's maximum drawdown of -16.24%. Use the drawdown chart below to compare losses from any high point for COII and COSW.

Drawdown Indicators

	COII	COSW	Difference
Max Drawdown Largest peak-to-trough decline	-72.22%	-16.24%	-55.98%
Current Drawdown Current decline from peak	-69.04%	-14.62%	-54.42%
Average Drawdown Average peak-to-trough decline	-39.11%	-4.17%	-34.94%

Volatility

Volatility by Period

	COII	COSW	Difference
Volatility (1Y) Calculated over the trailing 1-year period	68.48%	26.10%	+42.38%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	68.48%	26.10%	+42.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	68.48%	26.10%	+42.38%

COII vs. COSW - Expense Ratio Comparison

Both COII and COSW have an expense ratio of 0.99%.

Dividends

COII vs. COSW - Dividend Comparison

COII's dividend yield for the trailing twelve months is around 92.44%, more than COSW's 18.13% yield.

Position	TTM	2025
COII REX COIN Growth & Income ETF	92.44%	41.52%
COSW Roundhill COST WeeklyPay ETF	18.13%	4.96%

Frequently Asked Questions

Can I hold both COII and COSW in my portfolio?

COII and COSW have a correlation of -0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, COII or COSW?

Both ETFs have the same 0.99% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, COII or COSW?

COII and COSW have the same expense ratio: 0.99% per year.

Which ETF pays a higher dividend yield, COII or COSW?

COII has the higher dividend yield at 92.44%, compared with 18.13% for COSW.

What is the main difference between COII and COSW?

They also come from different issuers: REX Shares and Roundhill.