RDTE vs. SDTY

Last updated Jun 9, 2026

RDTE (Roundhill Small Cap 0DTE Covered Call Strategy ETF) and SDTY (YieldMax S&P 500 0DTE Covered Call Strategy ETF) are both Derivative Income funds. Both are actively managed. Over the past year, RDTE returned 24.27% vs 21.67% for SDTY. A 0.77 correlation means they provide meaningful diversification when combined. RDTE charges 0.95%/yr vs 1.01%/yr for SDTY.

Performance

RDTE vs. SDTY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Roundhill Small Cap 0DTE Covered Call Strategy ETF (RDTE) and YieldMax S&P 500 0DTE Covered Call Strategy ETF (SDTY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RDTE achieves a 10.92% return, which is significantly higher than SDTY's 6.19% return.

RDTE

• 1D: 0.90%
• 1M: -1.67%
• YTD: 10.92%
• 6M: 9.96%
• 1Y: 24.27%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SDTY

• 1D: 0.23%
• 1M: -0.08%
• YTD: 6.19%
• 6M: 6.33%
• 1Y: 21.67%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RDTE vs. SDTY - Yearly Performance Comparison

	2026 (YTD)	2025
RDTE Roundhill Small Cap 0DTE Covered Call Strategy ETF	10.92%	5.29%
SDTY YieldMax S&P 500 0DTE Covered Call Strategy ETF	6.19%	9.83%

Correlation

The correlation between RDTE and SDTY is 0.73, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.73
Correlation (All Time) Calculated using the full available price history since Feb 7, 2025	0.77

The correlation between RDTE and SDTY has been stable across timeframes, ranging from 0.73 to 0.77 - a consistent structural relationship.

RDTE vs. SDTY - Sectors Allocation Comparison

Sectors	RDTE	SDTY
Financial Services	6.4%	11.8%
Basic Materials	-	1.8%
Communication Services	-	11.2%
Consumer Cyclical	-	10.1%
Consumer Defensive	-	4.9%
Energy	-	3.5%
Healthcare	-	8.5%
Industrials	-	8.3%
Real Estate	-	1.9%
Technology	-	35.6%
Utilities	-	2.4%

Return for Risk

RDTE vs. SDTY — Risk / Return Rank

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

RDTE

RDTE Risk / Return Rank: 49
RDTE Sharpe Ratio Rank: 45
RDTE Sortino Ratio Rank: 43
RDTE Omega Ratio Rank: 42
RDTE Calmar Ratio Rank: 59
RDTE Martin Ratio Rank: 57

SDTY

SDTY Risk / Return Rank: 65
SDTY Sharpe Ratio Rank: 65
SDTY Sortino Ratio Rank: 64
SDTY Omega Ratio Rank: 67
SDTY Calmar Ratio Rank: 61
SDTY Martin Ratio Rank: 69

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.

RDTE vs. SDTY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill Small Cap 0DTE Covered Call Strategy ETF (RDTE) and YieldMax S&P 500 0DTE Covered Call Strategy ETF (SDTY). 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.

	RDTE	SDTY	Difference
Sharpe ratio: Return per unit of total volatility	1.43	1.94	-0.51
Sortino ratio: Return per unit of downside risk	1.98	2.64	-0.66
Omega ratio: Gain probability vs. loss probability	1.24	1.36	-0.12
Calmar ratio: Return relative to maximum drawdown	2.66	2.71	-0.06
Martin ratio: Return relative to average drawdown	9.20	11.38	-2.19
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RDTE vs. SDTY - Sharpe Ratio Comparison

The current RDTE Sharpe Ratio is 1.43, which is comparable to the SDTY Sharpe Ratio of 1.94. The chart below compares the historical Sharpe Ratios of RDTE and SDTY, 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

	RDTE	SDTY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.43	1.94	-0.51
Sharpe Ratio (All Time) Calculated using the full available price history	0.90	0.73	+0.17

Drawdowns

RDTE vs. SDTY - Drawdown Comparison

The maximum RDTE drawdown since its inception was -24.32%, which is greater than SDTY's maximum drawdown of -18.63%. Use the drawdown chart below to compare losses from any high point for RDTE and SDTY.

Drawdown Indicators

	RDTE	SDTY	Difference
Max Drawdown Largest peak-to-trough decline	-24.32%	-18.63%	-5.69%
Max Drawdown (1Y) Largest decline over 1 year	-9.17%	-8.02%	-1.15%
Current Drawdown Current decline from peak	-2.65%	-2.70%	+0.05%
Average Drawdown Average peak-to-trough decline	-4.65%	-3.02%	-1.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.65%	1.91%	+0.74%

Volatility

RDTE vs. SDTY - Volatility Comparison

Roundhill Small Cap 0DTE Covered Call Strategy ETF (RDTE) has a higher volatility of 5.84% compared to YieldMax S&P 500 0DTE Covered Call Strategy ETF (SDTY) at 3.44%. This indicates that RDTE's price experiences larger fluctuations and is considered to be riskier than SDTY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RDTE	SDTY	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.84%	3.44%	+2.40%
Volatility (6M) Calculated over the trailing 6-month period	12.85%	8.74%	+4.11%
Volatility (1Y) Calculated over the trailing 1-year period	17.09%	11.23%	+5.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.32%	16.85%	+2.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.32%	16.85%	+2.47%

RDTE vs. SDTY - Expense Ratio Comparison

RDTE has a 0.95% expense ratio, which is lower than SDTY's 1.01% expense ratio.

Dividends

RDTE vs. SDTY - Dividend Comparison

RDTE's dividend yield for the trailing twelve months is around 46.18%, more than SDTY's 26.00% yield.

Position	TTM	2025	2024
RDTE Roundhill Small Cap 0DTE Covered Call Strategy ETF	46.18%	50.16%	10.70%
SDTY YieldMax S&P 500 0DTE Covered Call Strategy ETF	26.00%	22.00%	0.00%

Frequently Asked Questions

Can I hold both RDTE and SDTY in my portfolio?

RDTE and SDTY have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RDTE or SDTY?

RDTE has higher volatility (5.84%) compared to SDTY (3.44%). In terms of maximum drawdown, RDTE dropped -24.32% vs SDTY's -18.63%.

Which ETF is better, RDTE or SDTY?

On 1-year performance, RDTE leads with 24.27% vs 21.67% for SDTY. On fees, RDTE is cheaper at 0.95% per year. On volatility, SDTY has been the lower-risk option at 3.44%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, RDTE or SDTY?

Over the 1-year period, RDTE has performed better with a 24.27% return vs 21.67%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, RDTE or SDTY?

RDTE is cheaper with a 0.95% expense ratio, compared with 1.01% for SDTY.

Which ETF pays a higher dividend yield, RDTE or SDTY?

RDTE has the higher dividend yield at 46.18%, compared with 26.00% for SDTY.

What is the main difference between RDTE and SDTY?

They also come from different issuers: Roundhill and YieldMax. Their fees differ too: 0.95% for RDTE and 1.01% for SDTY.

Which has better risk-adjusted returns?

SDTY currently has the higher Sharpe Ratio (1.94 vs 1.43), 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.