MSTY vs. COSW

Last updated Apr 1, 2026

Compare and contrast key facts about YieldMax™ MSTR Option Income Strategy ETF (MSTY) and Roundhill COST WeeklyPay ETF (COSW).

MSTY and COSW are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. MSTY is an actively managed fund by YieldMax. It was launched on Feb 21, 2024. COSW is an actively managed fund by Roundhill. It was launched on Oct 23, 2025.

Performance

MSTY vs. COSW - Performance Comparison

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

MSTY vs. COSW - Yearly Performance Comparison

	2026 (YTD)	2025
MSTY YieldMax™ MSTR Option Income Strategy ETF	-13.58%	-40.05%
COSW Roundhill COST WeeklyPay ETF	17.20%	-10.71%

Returns By Period

In the year-to-date period, MSTY achieves a -13.58% return, which is significantly lower than COSW's 17.20% return.

MSTY

• 1D: 2.45%
• 1M: -1.67%
• YTD: -13.58%
• 6M: -54.23%
• 1Y: -48.88%
• 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)

MSTY vs. COSW - Expense Ratio Comparison

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

MSTY

YieldMax™ MSTR Option Income Strategy ETF

COSW

Roundhill COST WeeklyPay ETF

Return for Risk

MSTY vs. COSW — Risk / Return Rank

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

MSTY

MSTY Risk / Return Rank: 2
MSTY Sharpe Ratio Rank: 2
MSTY Sortino Ratio Rank: 2
MSTY Omega Ratio Rank: 2
MSTY Calmar Ratio Rank: 2
MSTY Martin Ratio Rank: 3

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.

MSTY vs. COSW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax™ MSTR Option Income Strategy ETF (MSTY) 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.

	MSTY	COSW	Difference
Sharpe ratio Return per unit of total volatility	-0.77	—	—
Sortino ratio Return per unit of downside risk	-1.05	—	—
Omega ratio Gain probability vs. loss probability	0.88	—	—
Calmar ratio Return relative to maximum drawdown	-0.68	—	—
Martin ratio Return relative to average drawdown	-1.22	—	—
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

	MSTY	COSW	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.77	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.29	0.44	-0.16

Correlation

The correlation between MSTY and COSW is -0.08. 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

MSTY vs. COSW - Dividend Comparison

MSTY's dividend yield for the trailing twelve months is around 298.73%, more than COSW's 12.26% yield.

	TTM	2025	2024
MSTY YieldMax™ MSTR Option Income Strategy ETF	298.73%	294.61%	104.56%
COSW Roundhill COST WeeklyPay ETF	12.26%	4.96%	0.00%

Drawdowns

MSTY vs. COSW - Drawdown Comparison

The maximum MSTY drawdown since its inception was -71.79%, which is greater than COSW's maximum drawdown of -12.17%. Use the drawdown chart below to compare losses from any high point for MSTY and COSW.

Drawdown Indicators

	MSTY	COSW	Difference
Max Drawdown Largest peak-to-trough decline	-71.79%	-12.17%	-59.62%
Max Drawdown (1Y) Largest decline over 1 year	-71.79%	—	—
Current Drawdown Current decline from peak	-66.02%	-3.28%	-62.74%
Average Drawdown Average peak-to-trough decline	-23.37%	-4.05%	-19.32%
Ulcer Index Depth and duration of drawdowns from previous peaks	40.02%	—	—

Volatility

Volatility by Period

	MSTY	COSW	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.90%	—	—
Volatility (6M) Calculated over the trailing 6-month period	48.86%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	63.88%	25.36%	+38.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	72.67%	25.36%	+47.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	72.67%	25.36%	+47.31%