RDTE vs. COSW

Last updated Apr 2, 2026

Compare and contrast key facts about Roundhill Small Cap 0DTE Covered Call Strategy ETF (RDTE) and Roundhill COST WeeklyPay ETF (COSW).

RDTE and COSW are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. RDTE is an actively managed fund by Roundhill. It was launched on Sep 9, 2024. COSW is an actively managed fund by Roundhill. It was launched on Oct 23, 2025.

Performance

RDTE vs. COSW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Roundhill Small Cap 0DTE Covered Call Strategy ETF (RDTE) and Roundhill COST WeeklyPay ETF (COSW). The values are adjusted to include any dividend payments, if applicable.

RDTE vs. COSW - Yearly Performance Comparison

	2026 (YTD)	2025
RDTE Roundhill Small Cap 0DTE Covered Call Strategy ETF	0.99%	0.06%
COSW Roundhill COST WeeklyPay ETF	17.85%	-10.71%

Returns By Period

In the year-to-date period, RDTE achieves a 0.99% return, which is significantly lower than COSW's 17.85% return.

RDTE

• 1D: 0.67%
• 1M: -4.76%
• YTD: 0.99%
• 6M: 1.65%
• 1Y: 18.16%
• 3Y*: —
• 5Y*: —
• 10Y*: —

COSW

• 1D: 0.56%
• 1M: -1.19%
• YTD: 17.85%
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RDTE vs. COSW - Expense Ratio Comparison

RDTE has a 0.95% expense ratio, which is lower than COSW's 0.99% expense ratio.

COSW

Roundhill COST WeeklyPay ETF

RDTE

Roundhill Small Cap 0DTE Covered Call Strategy ETF

Return for Risk

RDTE vs. COSW — Risk / Return Rank

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

RDTE

RDTE Risk / Return Rank: 46
RDTE Sharpe Ratio Rank: 49
RDTE Sortino Ratio Rank: 44
RDTE Omega Ratio Rank: 43
RDTE Calmar Ratio Rank: 48
RDTE Martin Ratio Rank: 47

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.

RDTE vs. COSW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Small Cap 0DTE Covered Call Strategy ETF (RDTE) 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.

	RDTE	COSW	Difference
Sharpe ratio Return per unit of total volatility	0.92	—	—
Sortino ratio Return per unit of downside risk	1.28	—	—
Omega ratio Gain probability vs. loss probability	1.18	—	—
Calmar ratio Return relative to maximum drawdown	1.31	—	—
Martin ratio Return relative to average drawdown	4.68	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	RDTE	COSW	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.92	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.50	+0.15

Correlation

The correlation between RDTE and COSW is -0.00. This indicates that the assets' prices tend to move in opposite directions. Negative correlation can be particularly beneficial for diversification and risk management, as one asset may offset the losses of the other during market fluctuations.

Dividends

RDTE vs. COSW - Dividend Comparison

RDTE's dividend yield for the trailing twelve months is around 51.50%, more than COSW's 12.19% yield.

	TTM	2025	2024
RDTE Roundhill Small Cap 0DTE Covered Call Strategy ETF	51.50%	50.16%	10.70%
COSW Roundhill COST WeeklyPay ETF	12.19%	4.96%	0.00%

Drawdowns

RDTE vs. COSW - Drawdown Comparison

The maximum RDTE drawdown since its inception was -24.32%, which is greater than COSW's maximum drawdown of -12.17%. Use the drawdown chart below to compare losses from any high point for RDTE and COSW.

Drawdown Indicators

	RDTE	COSW	Difference
Max Drawdown Largest peak-to-trough decline	-24.32%	-12.17%	-12.15%
Max Drawdown (1Y) Largest decline over 1 year	-13.91%	—	—
Current Drawdown Current decline from peak	-5.96%	-2.74%	-3.22%
Average Drawdown Average peak-to-trough decline	-5.04%	-4.04%	-1.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.90%	—	—

Volatility

Volatility by Period

	RDTE	COSW	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.85%	—	—
Volatility (6M) Calculated over the trailing 6-month period	13.07%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	19.72%	25.26%	-5.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.45%	25.26%	-5.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.45%	25.26%	-5.81%