WEEK vs. YMAX

Last updated Jul 21, 2026

WEEK (Roundhill Weekly T-Bill ETF) and YMAX (YieldMax Universe Fund of Option Income ETFs) are both exchange-traded funds - WEEK is a Ultrashort Bond fund actively managed by Roundhill, while YMAX is a Derivative Income fund actively managed by YieldMax. Both are actively managed. Over the past year, WEEK returned 3.75% vs -6.89% for YMAX. At a correlation of -0.03, they often move in opposite directions. WEEK charges 0.19%/yr vs 1.28%/yr for YMAX.

Performance

WEEK vs. YMAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Roundhill Weekly T-Bill ETF (WEEK) and YieldMax Universe Fund of Option Income ETFs (YMAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, WEEK achieves a 1.89% return, which is significantly higher than YMAX's -0.74% return.

WEEK

• 1D: 0.05%
• 1M: 0.25%
• 6M: 1.81%
• YTD: 1.89%
• 1Y: 3.75%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 3.86%

YMAX

• 1D: 0.00%
• 1M: -4.39%
• 6M: -3.15%
• YTD: -0.74%
• 1Y: -6.89%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 12.25%

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

WEEK vs. YMAX - Yearly Performance Comparison

	2026 (YTD)	2025
WEEK Roundhill Weekly T-Bill ETF	1.89%	3.37%
YMAX YieldMax Universe Fund of Option Income ETFs	-0.74%	10.26%

Correlation

The correlation between WEEK and YMAX is -0.02, 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 (1Y) Calculated over the trailing 1-year period	-0.02
Correlation (All Time) Calculated using the full available price history since Mar 6, 2025	-0.03

Return for Risk

WEEK vs. YMAX — 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

YMAX

YMAX Risk / Return Rank: 7
YMAX Sharpe Ratio Rank: 7
YMAX Sortino Ratio Rank: 7
YMAX Omega Ratio Rank: 7
YMAX Calmar Ratio Rank: 7
YMAX Martin Ratio Rank: 7

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.

WEEK vs. YMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Weekly T-Bill ETF (WEEK) and YieldMax Universe Fund of Option Income ETFs (YMAX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	WEEK	YMAX	Difference
Sharpe ratio: Return per unit of total volatility	8.90	-0.29	+9.18
Sortino ratio: Return per unit of downside risk	18.45	-0.24	+18.69
Omega ratio: Gain probability vs. loss probability	4.41	0.97	+3.44
Calmar ratio: Return relative to maximum drawdown	29.00	-0.26	+29.27
Martin ratio: Return relative to average drawdown	250.19	-0.60	+250.79

WEEK vs. YMAX - Sharpe Ratio Comparison

The current WEEK Sharpe Ratio is 8.90, which is higher than the YMAX Sharpe Ratio of -0.29. The chart below compares the historical Sharpe Ratios of WEEK and YMAX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

WEEK vs. YMAX - Drawdown Comparison

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

Drawdown Indicators

	WEEK	YMAX	Difference
Max Drawdown Largest peak-to-trough decline	-0.13%	-26.13%	+26.00%
Max Drawdown (1Y) Largest decline over 1 year	-0.13%	-26.13%	+26.00%
Current Drawdown Current decline from peak	0.00%	-12.00%	+12.00%
Average Drawdown Average peak-to-trough decline	-0.01%	-6.48%	+6.47%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.02%	11.52%	-11.50%

Volatility

WEEK vs. YMAX - Volatility Comparison

The current volatility for Roundhill Weekly T-Bill ETF (WEEK) is 0.12%, while YieldMax Universe Fund of Option Income ETFs (YMAX) has a volatility of 6.50%. This indicates that WEEK experiences smaller price fluctuations and is considered to be less risky than YMAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WEEK	YMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.12%	6.50%	-6.38%
Volatility (6M) Calculated over the trailing 6-month period	0.26%	20.15%	-19.89%
Volatility (1Y) Calculated over the trailing 1-year period	0.42%	23.99%	-23.57%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.39%	23.53%	-23.14%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.39%	23.53%	-23.14%

WEEK vs. YMAX - Expense Ratio Comparison

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

Dividends

WEEK vs. YMAX - Dividend Comparison

WEEK's dividend yield for the trailing twelve months is around 3.65%, less than YMAX's 74.50% yield.

Position	TTM	2025	2024
WEEK Roundhill Weekly T-Bill ETF	3.65%	3.27%	0.00%
YMAX YieldMax Universe Fund of Option Income ETFs	74.50%	78.70%	44.20%

Frequently Asked Questions

Can I hold both WEEK and YMAX in my portfolio?

WEEK and YMAX have a correlation of -0.02, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, WEEK or YMAX?

YMAX has higher volatility (6.50%) compared to WEEK (0.12%). In terms of maximum drawdown, WEEK dropped -0.13% vs YMAX's -26.13%.

Which ETF is better, WEEK or YMAX?

On 1-year performance, WEEK leads with 3.75% vs -6.89% for YMAX. On fees, WEEK is cheaper at 0.19% per year. On volatility, WEEK has been the lower-risk option at 0.12%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, WEEK or YMAX?

Over the 1-year period, WEEK has performed better with a 3.75% return vs -6.89%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, WEEK or YMAX?

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

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

YMAX has the higher dividend yield at 74.50%, compared with 3.65% for WEEK.

What is the main difference between WEEK and YMAX?

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

Which has better risk-adjusted returns?

WEEK currently has the higher Sharpe Ratio (8.90 vs -0.29), 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.