RBLY vs. MRNY

Last updated Jun 5, 2026

RBLY (YieldMax RBLX Option Income Strategy ETF) and MRNY (YieldMax MRNA Option Income Strategy ETF) are both Derivative Income funds from YieldMax. Both are actively managed. At a 0.12 correlation, their price movements are largely independent. Both charge a 0.99% expense ratio.

Performance

RBLY vs. MRNY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in YieldMax RBLX Option Income Strategy ETF (RBLY) and YieldMax MRNA Option Income Strategy ETF (MRNY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RBLY achieves a -45.86% return, which is significantly lower than MRNY's 55.67% return.

RBLY

• 1D: -0.55%
• 1M: -4.44%
• YTD: -45.86%
• 6M: -52.54%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

MRNY

• 1D: 2.69%
• 1M: 7.98%
• YTD: 55.67%
• 6M: 64.78%
• 1Y: 53.27%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RBLY vs. MRNY - Yearly Performance Comparison

	2026 (YTD)	2025
RBLY YieldMax RBLX Option Income Strategy ETF	-45.86%	-24.82%
MRNY YieldMax MRNA Option Income Strategy ETF	55.67%	-14.89%

Correlation

The correlation between RBLY and MRNY is 0.12, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jul 30, 2025	0.12

Return for Risk

RBLY vs. MRNY — Risk / Return Rank

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

MRNY

MRNY Risk / Return Rank: 32
MRNY Sharpe Ratio Rank: 30
MRNY Sortino Ratio Rank: 36
MRNY Omega Ratio Rank: 33
MRNY Calmar Ratio Rank: 35
MRNY Martin Ratio Rank: 25

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.

RBLY vs. MRNY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax RBLX Option Income Strategy ETF (RBLY) and YieldMax MRNA Option Income Strategy ETF (MRNY). 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

	RBLY	MRNY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.08	—
Sharpe Ratio (All Time) Calculated using the full available price history	-1.25	-0.48	-0.77

Drawdowns

RBLY vs. MRNY - Drawdown Comparison

The maximum RBLY drawdown since its inception was -65.81%, smaller than the maximum MRNY drawdown of -82.15%. Use the drawdown chart below to compare losses from any high point for RBLY and MRNY.

Drawdown Indicators

	RBLY	MRNY	Difference
Max Drawdown Largest peak-to-trough decline	-65.81%	-82.15%	+16.34%
Max Drawdown (1Y) Largest decline over 1 year	—	-31.53%	—
Current Drawdown Current decline from peak	-65.61%	-67.23%	+1.62%
Average Drawdown Average peak-to-trough decline	-33.20%	-52.64%	+19.44%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	16.15%	—

Volatility

Volatility by Period

	RBLY	MRNY	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	13.53%	—
Volatility (6M) Calculated over the trailing 6-month period	—	37.11%	—
Volatility (1Y) Calculated over the trailing 1-year period	52.29%	49.38%	+2.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	52.29%	50.75%	+1.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	52.29%	50.75%	+1.54%

RBLY vs. MRNY - Expense Ratio Comparison

Both RBLY and MRNY have an expense ratio of 0.99%.

Dividends

RBLY vs. MRNY - Dividend Comparison

RBLY's dividend yield for the trailing twelve months is around 131.94%, more than MRNY's 100.06% yield.

Position	TTM	2025	2024	2023
MRNY YieldMax MRNA Option Income Strategy ETF	100.06%	145.98%	178.49%	1.75%
RBLY YieldMax RBLX Option Income Strategy ETF	131.94%	36.84%	0.00%	0.00%

Frequently Asked Questions

Can I hold both RBLY and MRNY in my portfolio?

RBLY and MRNY have a correlation of 0.12, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, RBLY or MRNY?

Both ETFs have the same 0.99% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, RBLY or MRNY?

RBLY and MRNY have the same expense ratio: 0.99% per year.

Which ETF pays a higher dividend yield, RBLY or MRNY?

RBLY has the higher dividend yield at 131.94%, compared with 100.06% for MRNY.