WEEK vs. USOY

Last updated Jun 14, 2026

WEEK (Roundhill Weekly T-Bill ETF) and USOY (Defiance Oil Enhanced Options Income ETF) are both exchange-traded funds - WEEK is a Ultrashort Bond fund actively managed by Roundhill, while USOY is a Derivative Income fund actively managed by Defiance. Both are actively managed. Over the past year, WEEK returned 3.76% vs 38.49% for USOY. At a correlation of -0.12, they often move in opposite directions. WEEK charges 0.19%/yr vs 1.22%/yr for USOY.

Performance

WEEK vs. USOY - Performance Comparison

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

Returns By Period

In the year-to-date period, WEEK achieves a 1.53% return, which is significantly lower than USOY's 49.45% return.

WEEK

• 1D: 0.05%
• 1M: 0.29%
• YTD: 1.53%
• 6M: 1.77%
• 1Y: 3.76%
• 3Y*: —
• 5Y*: —
• 10Y*: —

USOY

• 1D: -1.40%
• 1M: -10.51%
• YTD: 49.45%
• 6M: 49.95%
• 1Y: 38.49%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

WEEK vs. USOY - Yearly Performance Comparison

	2026 (YTD)	2025
WEEK Roundhill Weekly T-Bill ETF	1.53%	3.37%
USOY Defiance Oil Enhanced Options Income ETF	49.45%	-5.41%

Correlation

The correlation between WEEK and USOY is -0.15, 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	-0.15
Correlation (All Time) Calculated using the full available price history since Mar 6, 2025	-0.12

Return for Risk

WEEK vs. USOY — 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

USOY

USOY Risk / Return Rank: 46
USOY Sharpe Ratio Rank: 42
USOY Sortino Ratio Rank: 37
USOY Omega Ratio Rank: 44
USOY Calmar Ratio Rank: 66
USOY Martin Ratio Rank: 39

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. USOY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Weekly T-Bill ETF (WEEK) and Defiance Oil Enhanced Options Income ETF (USOY). 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	USOY	Difference
Sharpe ratio: Return per unit of total volatility	9.17	1.33	+7.84
Sortino ratio: Return per unit of downside risk	18.96	1.75	+17.21
Omega ratio: Gain probability vs. loss probability	4.52	1.25	+3.27
Calmar ratio: Return relative to maximum drawdown	29.44	2.90	+26.53
Martin ratio: Return relative to average drawdown	258.71	5.46	+253.25

WEEK vs. USOY - Sharpe Ratio Comparison

The current WEEK Sharpe Ratio is 9.17, which is higher than the USOY Sharpe Ratio of 1.33. The chart below compares the historical Sharpe Ratios of WEEK and USOY, 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. USOY - Drawdown Comparison

The maximum WEEK drawdown since its inception was -0.13%, smaller than the maximum USOY drawdown of -17.46%. Use the drawdown chart below to compare losses from any high point for WEEK and USOY.

Drawdown Indicators

	WEEK	USOY	Difference
Max Drawdown Largest peak-to-trough decline	-0.13%	-17.46%	+17.33%
Max Drawdown (1Y) Largest decline over 1 year	-0.13%	-14.29%	+14.16%
Current Drawdown Current decline from peak	0.00%	-12.56%	+12.56%
Average Drawdown Average peak-to-trough decline	-0.01%	-6.49%	+6.48%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.01%	7.58%	-7.57%

Volatility

WEEK vs. USOY - Volatility Comparison

The current volatility for Roundhill Weekly T-Bill ETF (WEEK) is 0.09%, while Defiance Oil Enhanced Options Income ETF (USOY) has a volatility of 10.45%. This indicates that WEEK experiences smaller price fluctuations and is considered to be less risky than USOY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WEEK	USOY	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.09%	10.45%	-10.36%
Volatility (6M) Calculated over the trailing 6-month period	0.26%	27.97%	-27.71%
Volatility (1Y) Calculated over the trailing 1-year period	0.42%	31.15%	-30.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.39%	26.34%	-25.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.39%	26.34%	-25.95%

WEEK vs. USOY - Expense Ratio Comparison

WEEK has a 0.19% expense ratio, which is lower than USOY's 1.22% expense ratio.

Dividends

WEEK vs. USOY - Dividend Comparison

WEEK's dividend yield for the trailing twelve months is around 3.71%, less than USOY's 61.95% yield.

Position	TTM	2025	2024
USOY Defiance Oil Enhanced Options Income ETF	61.95%	104.32%	48.60%
WEEK Roundhill Weekly T-Bill ETF	3.71%	3.27%	0.00%

Frequently Asked Questions

Can I hold both WEEK and USOY in my portfolio?

WEEK and USOY have a correlation of -0.15, 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 USOY?

USOY has higher volatility (10.45%) compared to WEEK (0.09%). In terms of maximum drawdown, WEEK dropped -0.13% vs USOY's -17.46%.

Which ETF is better, WEEK or USOY?

On 1-year performance, USOY leads with 38.49% vs 3.76% for WEEK. On fees, WEEK is cheaper at 0.19% per year. On volatility, WEEK has been the lower-risk option at 0.09%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, WEEK or USOY?

Over the 1-year period, USOY has performed better with a 38.49% return vs 3.76%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, WEEK or USOY?

WEEK is cheaper with a 0.19% expense ratio, compared with 1.22% for USOY.

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

USOY has the higher dividend yield at 61.95%, compared with 3.71% for WEEK.

What is the main difference between WEEK and USOY?

WEEK is categorized as Ultrashort Bond, while USOY is Derivative Income. They also come from different issuers: Roundhill and Defiance. Their fees differ too: 0.19% for WEEK and 1.22% for USOY.

Which has better risk-adjusted returns?

WEEK currently has the higher Sharpe Ratio (9.17 vs 1.33), 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.