IMRA vs. COSW

Last updated Apr 1, 2026

Compare and contrast key facts about Bitwise MARA Option Income Strategy ETF (IMRA) and Roundhill COST WeeklyPay ETF (COSW).

IMRA and COSW are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. IMRA is an actively managed fund by Bitwise. It was launched on Apr 1, 2025. COSW is an actively managed fund by Roundhill. It was launched on Oct 23, 2025.

Performance

IMRA vs. COSW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Bitwise MARA Option Income Strategy ETF (IMRA) and Roundhill COST WeeklyPay ETF (COSW). The values are adjusted to include any dividend payments, if applicable.

IMRA vs. COSW - Yearly Performance Comparison

	2026 (YTD)	2025
IMRA Bitwise MARA Option Income Strategy ETF	-6.91%	-48.24%
COSW Roundhill COST WeeklyPay ETF	17.20%	-10.71%

Returns By Period

In the year-to-date period, IMRA achieves a -6.91% return, which is significantly lower than COSW's 17.20% return.

IMRA

• 1D: 4.17%
• 1M: -11.74%
• YTD: -6.91%
• 6M: -50.72%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

COSW

• 1D: -0.54%
• 1M: -2.62%
• YTD: 17.20%
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

IMRA vs. COSW - Expense Ratio Comparison

IMRA has a 0.98% expense ratio, which is lower than COSW's 0.99% expense ratio.

COSW

Roundhill COST WeeklyPay ETF

IMRA

Bitwise MARA Option Income Strategy ETF

Return for Risk

IMRA vs. COSW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Bitwise MARA Option Income Strategy ETF (IMRA) 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

	IMRA	COSW	Difference
Sharpe Ratio (All Time) Calculated using the full available price history	-0.60	0.44	-1.04

Correlation

The correlation between IMRA and COSW is 0.05, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

IMRA vs. COSW - Dividend Comparison

IMRA's dividend yield for the trailing twelve months is around 219.65%, more than COSW's 12.26% yield.

	TTM	2025
IMRA Bitwise MARA Option Income Strategy ETF	219.65%	188.74%
COSW Roundhill COST WeeklyPay ETF	12.26%	4.96%

Drawdowns

IMRA vs. COSW - Drawdown Comparison

The maximum IMRA drawdown since its inception was -61.55%, which is greater than COSW's maximum drawdown of -12.17%. Use the drawdown chart below to compare losses from any high point for IMRA and COSW.

Drawdown Indicators

	IMRA	COSW	Difference
Max Drawdown Largest peak-to-trough decline	-61.55%	-12.17%	-49.38%
Current Drawdown Current decline from peak	-57.63%	-3.28%	-54.35%
Average Drawdown Average peak-to-trough decline	-24.95%	-4.05%	-20.90%

Volatility

Volatility by Period

	IMRA	COSW	Difference
Volatility (1Y) Calculated over the trailing 1-year period	64.63%	25.36%	+39.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	64.63%	25.36%	+39.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	64.63%	25.36%	+39.27%