MSTW vs. WEEK

Last updated Jun 4, 2026

MSTW (Roundhill MSTR WeeklyPay ETF) and WEEK (Roundhill Weekly T-Bill ETF) are both exchange-traded funds - MSTW is a Derivative Income fund actively managed by Roundhill, while WEEK is a Ultrashort Bond fund actively managed by Roundhill. Both are actively managed. At a correlation of -0.07, they often move in opposite directions. MSTW charges 0.99%/yr vs 0.19%/yr for WEEK.

Performance

MSTW vs. WEEK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Roundhill MSTR WeeklyPay ETF (MSTW) and Roundhill Weekly T-Bill ETF (WEEK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MSTW achieves a -23.56% return, which is significantly lower than WEEK's 1.44% return.

MSTW

• 1D: -8.54%
• 1M: -36.78%
• YTD: -23.56%
• 6M: -41.29%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

WEEK

• 1D: 0.02%
• 1M: 0.28%
• YTD: 1.44%
• 6M: 1.74%
• 1Y: 3.81%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MSTW vs. WEEK - Yearly Performance Comparison

	2026 (YTD)	2025
MSTW Roundhill MSTR WeeklyPay ETF	-23.56%	-71.42%
WEEK Roundhill Weekly T-Bill ETF	1.44%	1.74%

Correlation

The correlation between MSTW and WEEK is -0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jul 25, 2025	-0.07

Return for Risk

MSTW vs. WEEK — Risk / Return Rank

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

WEEK

WEEK Risk / Return Rank: 99
WEEK Sharpe Ratio Rank: 99
WEEK Sortino Ratio Rank: 99
WEEK Omega Ratio Rank: 99
WEEK Calmar Ratio Rank: 99
WEEK Martin Ratio Rank: 99

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.

MSTW vs. WEEK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill MSTR WeeklyPay ETF (MSTW) and Roundhill Weekly T-Bill ETF (WEEK). 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

	MSTW	WEEK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	9.29	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.94	10.05	-10.98

Drawdowns

MSTW vs. WEEK - Drawdown Comparison

The maximum MSTW drawdown since its inception was -81.85%, which is greater than WEEK's maximum drawdown of -0.13%. Use the drawdown chart below to compare losses from any high point for MSTW and WEEK.

Drawdown Indicators

	MSTW	WEEK	Difference
Max Drawdown Largest peak-to-trough decline	-81.85%	-0.13%	-81.72%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.13%	—
Current Drawdown Current decline from peak	-78.15%	0.00%	-78.15%
Average Drawdown Average peak-to-trough decline	-54.49%	-0.01%	-54.48%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.01%	—

Volatility

Volatility by Period

	MSTW	WEEK	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.07%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.25%	—
Volatility (1Y) Calculated over the trailing 1-year period	89.01%	0.41%	+88.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	89.01%	0.39%	+88.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	89.01%	0.39%	+88.62%

MSTW vs. WEEK - Expense Ratio Comparison

MSTW has a 0.99% expense ratio, which is higher than WEEK's 0.19% expense ratio.

Dividends

MSTW vs. WEEK - Dividend Comparison

MSTW's dividend yield for the trailing twelve months is around 239.64%, more than WEEK's 3.72% yield.

Position	TTM	2025
MSTW Roundhill MSTR WeeklyPay ETF	239.64%	106.94%
WEEK Roundhill Weekly T-Bill ETF	3.72%	3.27%

Frequently Asked Questions

Can I hold both MSTW and WEEK in my portfolio?

MSTW and WEEK have a correlation of -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, MSTW or WEEK?

On fees, WEEK is cheaper at 0.19% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MSTW or WEEK?

WEEK is cheaper with a 0.19% expense ratio, compared with 0.99% for MSTW.

Which ETF pays a higher dividend yield, MSTW or WEEK?

MSTW has the higher dividend yield at 239.64%, compared with 3.72% for WEEK.

What is the main difference between MSTW and WEEK?

MSTW is categorized as Derivative Income, while WEEK is Ultrashort Bond. Their fees differ too: 0.99% for MSTW and 0.19% for WEEK.