YMAX vs. WEEK

Last updated Jun 9, 2026

YMAX (YieldMax Universe Fund of Option Income ETFs) and WEEK (Roundhill Weekly T-Bill ETF) are both exchange-traded funds - YMAX is a Derivative Income fund actively managed by YieldMax, while WEEK is a Ultrashort Bond fund actively managed by Roundhill. Both are actively managed. Over the past year, YMAX returned 5.13% vs 3.83% for WEEK. At a correlation of -0.06, they often move in opposite directions. YMAX charges 1.28%/yr vs 0.19%/yr for WEEK.

Performance

YMAX vs. WEEK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in YieldMax Universe Fund of Option Income ETFs (YMAX) 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, YMAX achieves a 2.44% return, which is significantly higher than WEEK's 1.50% return.

YMAX

• 1D: 2.11%
• 1M: -1.05%
• YTD: 2.44%
• 6M: -0.72%
• 1Y: 5.13%
• 3Y*: —
• 5Y*: —
• 10Y*: —

WEEK

• 1D: 0.04%
• 1M: 0.29%
• YTD: 1.50%
• 6M: 1.79%
• 1Y: 3.83%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

YMAX vs. WEEK - Yearly Performance Comparison

	2026 (YTD)	2025
YMAX YieldMax Universe Fund of Option Income ETFs	2.44%	13.65%
WEEK Roundhill Weekly T-Bill ETF	1.50%	3.37%

Correlation

The correlation between YMAX and WEEK is -0.10, 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 (1Y) Calculated over the trailing 1-year period	-0.10
Correlation (All Time) Calculated using the full available price history since Mar 7, 2025	-0.06

Return for Risk

YMAX vs. WEEK — Risk / Return Rank

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

YMAX

YMAX Risk / Return Rank: 12
YMAX Sharpe Ratio Rank: 13
YMAX Sortino Ratio Rank: 13
YMAX Omega Ratio Rank: 13
YMAX Calmar Ratio Rank: 12
YMAX Martin Ratio Rank: 12

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.

YMAX vs. WEEK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax Universe Fund of Option Income ETFs (YMAX) 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.

	YMAX	WEEK	Difference
Sharpe ratio: Return per unit of total volatility	0.23	9.29	-9.06
Sortino ratio: Return per unit of downside risk	0.45	19.18	-18.73
Omega ratio: Gain probability vs. loss probability	1.06	4.63	-3.57
Calmar ratio: Return relative to maximum drawdown	0.20	29.58	-29.39
Martin ratio: Return relative to average drawdown	0.47	264.43	-263.97
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

YMAX vs. WEEK - Sharpe Ratio Comparison

The current YMAX Sharpe Ratio is 0.23, which is lower than the WEEK Sharpe Ratio of 9.29. The chart below compares the historical Sharpe Ratios of YMAX and WEEK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	YMAX	WEEK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.23	9.29	-9.06
Sharpe Ratio (All Time) Calculated using the full available price history	0.61	10.10	-9.48

Drawdowns

YMAX vs. WEEK - Drawdown Comparison

The maximum YMAX drawdown since its inception was -26.13%, which is greater than WEEK's maximum drawdown of -0.13%. Use the drawdown chart below to compare losses from any high point for YMAX and WEEK.

Drawdown Indicators

	YMAX	WEEK	Difference
Max Drawdown Largest peak-to-trough decline	-26.13%	-0.13%	-26.00%
Max Drawdown (1Y) Largest decline over 1 year	-26.13%	-0.13%	-26.00%
Current Drawdown Current decline from peak	-9.18%	0.00%	-9.18%
Average Drawdown Average peak-to-trough decline	-6.34%	-0.01%	-6.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.04%	0.01%	+11.03%

Volatility

YMAX vs. WEEK - Volatility Comparison

YieldMax Universe Fund of Option Income ETFs (YMAX) has a higher volatility of 8.44% compared to Roundhill Weekly T-Bill ETF (WEEK) at 0.08%. This indicates that YMAX's price experiences larger fluctuations and is considered to be riskier than WEEK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	YMAX	WEEK	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.44%	0.08%	+8.36%
Volatility (6M) Calculated over the trailing 6-month period	18.14%	0.25%	+17.89%
Volatility (1Y) Calculated over the trailing 1-year period	22.35%	0.41%	+21.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.25%	0.39%	+22.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.25%	0.39%	+22.86%

YMAX vs. WEEK - Expense Ratio Comparison

YMAX has a 1.28% expense ratio, which is higher than WEEK's 0.19% expense ratio.

Dividends

YMAX vs. WEEK - Dividend Comparison

YMAX's dividend yield for the trailing twelve months is around 73.42%, more than WEEK's 3.72% yield.

Position	TTM	2025	2024
WEEK Roundhill Weekly T-Bill ETF	3.72%	3.27%	0.00%
YMAX YieldMax Universe Fund of Option Income ETFs	73.42%	78.70%	44.20%

Frequently Asked Questions

Can I hold both YMAX and WEEK in my portfolio?

YMAX and WEEK have a correlation of -0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, YMAX or WEEK?

YMAX has higher volatility (8.44%) compared to WEEK (0.08%). In terms of maximum drawdown, YMAX dropped -26.13% vs WEEK's -0.13%.

Which ETF is better, YMAX or WEEK?

On 1-year performance, YMAX leads with 5.13% vs 3.83% for WEEK. On fees, WEEK is cheaper at 0.19% per year. On volatility, WEEK has been the lower-risk option at 0.08%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, YMAX or WEEK?

Over the 1-year period, YMAX has performed better with a 5.13% return vs 3.83%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, YMAX or WEEK?

WEEK is cheaper with a 0.19% expense ratio, compared with 1.28% for YMAX.

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

YMAX has the higher dividend yield at 73.42%, compared with 3.72% for WEEK.

What is the main difference between YMAX and WEEK?

YMAX is categorized as Derivative Income, while WEEK is Ultrashort Bond. They also come from different issuers: YieldMax and Roundhill. Their fees differ too: 1.28% for YMAX and 0.19% for WEEK.

Which has better risk-adjusted returns?

WEEK currently has the higher Sharpe Ratio (9.29 vs 0.23), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.