RBLY vs. MSTY

Last updated Aug 2, 2026

RBLY (YieldMax RBLX Option Income Strategy ETF) and MSTY (YieldMax™ MSTR Option Income Strategy ETF) are both Derivative Income funds from YieldMax. Both are actively managed. Over the past year, RBLY returned -68.34% vs -68.40% for MSTY. Their 0.28 correlation means their historical movements had little consistent relationship. Both charge a 0.99% expense ratio.

Performance

RBLY vs. MSTY - Performance Comparison

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

Returns By Period

In the year-to-date period, RBLY achieves a -55.31% return, which is significantly lower than MSTY's -33.29% return.

RBLY

• 1D: -24.81%
• 1M: -31.51%
• 6M: -44.86%
• YTD: -55.31%
• 1Y: -68.34%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: -66.93%

MSTY

• 1D: -2.60%
• 1M: -2.63%
• 6M: -31.98%
• YTD: -33.29%
• 1Y: -68.40%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 7.52%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
MSTY YieldMax™ MSTR Option Income Strategy ETF	$12.71M	$13.42M	$28.94M
RBLY YieldMax RBLX Option Income Strategy ETF	$212.05K	$224.38K	$157.63K

RBLY vs. MSTY - Yearly Performance Comparison

	2026 (YTD)	2025
RBLY YieldMax RBLX Option Income Strategy ETF	-55.31%	-26.39%
MSTY YieldMax™ MSTR Option Income Strategy ETF	-33.29%	-56.69%

Correlation

The correlation between RBLY and MSTY is 0.27, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.27
Correlation (All Time) Calculated using the full available price history since Jul 29, 2025	0.28

Return for Risk

RBLY vs. MSTY — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

RBLY

RBLY Risk / Return Rank: 0
RBLY Sharpe Ratio Rank: 0
RBLY Sortino Ratio Rank: 0
RBLY Omega Ratio Rank: 0
RBLY Calmar Ratio Rank: 0
RBLY Martin Ratio Rank: 0

MSTY

MSTY Risk / Return Rank: 1
MSTY Sharpe Ratio Rank: 1
MSTY Sortino Ratio Rank: 0
MSTY Omega Ratio Rank: 1
MSTY Calmar Ratio Rank: 1
MSTY Martin Ratio Rank: 1

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

RBLY vs. MSTY - Risk-Adjusted Trends Comparison

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

	RBLY	MSTY	Difference
Sharpe ratio: Return per unit of total volatility	-1.23	-1.09	-0.14
Sortino ratio: Return per unit of downside risk	-2.20	-2.13	-0.07
Omega ratio: Gain probability vs. loss probability	0.71	0.77	-0.07
Calmar ratio: Return relative to maximum drawdown	-0.99	-0.95	-0.04
Martin ratio: Return relative to average drawdown	-1.62	-1.40	-0.22

RBLY vs. MSTY - Sharpe Ratio Comparison

The current RBLY Sharpe Ratio is -1.23, which is comparable to the MSTY Sharpe Ratio of -1.09. The chart below compares the historical Sharpe Ratios of RBLY and MSTY, 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

RBLY vs. MSTY - Drawdown Comparison

The maximum RBLY drawdown since its inception was -71.61%, smaller than the maximum MSTY drawdown of -77.40%. Use the drawdown chart below to compare losses from any high point for RBLY and MSTY.

Drawdown Indicators

	RBLY	MSTY	Difference
Max Drawdown Largest peak-to-trough decline	-71.61%	-77.40%	+5.79%
Max Drawdown (1Y) Largest decline over 1 year	-71.61%	-74.91%	+3.30%
Current Drawdown Current decline from peak	-71.61%	-73.77%	+2.16%
Average Drawdown Average peak-to-trough decline	-37.44%	-29.05%	-8.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	43.79%	50.99%	-7.20%

Volatility

RBLY vs. MSTY - Volatility Comparison

YieldMax RBLX Option Income Strategy ETF (RBLY) has a higher volatility of 30.27% compared to YieldMax™ MSTR Option Income Strategy ETF (MSTY) at 14.46%. This indicates that RBLY's price experiences larger fluctuations and is considered to be riskier than MSTY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RBLY	MSTY	Difference
Volatility (1M) Calculated over the trailing 1-month period	30.27%	14.46%	+15.81%
Volatility (6M) Calculated over the trailing 6-month period	50.88%	52.28%	-1.40%
Volatility (1Y) Calculated over the trailing 1-year period	58.64%	65.31%	-6.67%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	58.66%	71.91%	-13.25%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	58.66%	71.91%	-13.25%

RBLY vs. MSTY - Expense Ratio Comparison

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

Dividends

RBLY vs. MSTY - Dividend Comparison

RBLY's dividend yield for the trailing twelve months is around 197.07%, less than MSTY's 251.54% yield.

Position	TTM	2025	2024
MSTY YieldMax™ MSTR Option Income Strategy ETF	251.54%	294.61%	104.56%
RBLY YieldMax RBLX Option Income Strategy ETF	197.07%	36.84%	0.00%

Frequently Asked Questions

Can I hold both RBLY and MSTY in my portfolio?

RBLY and MSTY have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, RBLY or MSTY?

RBLY has higher volatility (30.27%) compared to MSTY (14.46%). In terms of maximum drawdown, RBLY dropped -71.61% vs MSTY's -77.40%.

Which ETF is better, RBLY or MSTY?

On 1-year performance, RBLY leads with -68.34% vs -68.40% for MSTY. Both ETFs have the same 0.99% expense ratio. On volatility, MSTY has been the lower-risk option at 14.46%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, RBLY or MSTY?

Over the 1-year period, RBLY has performed better with a -68.34% return vs -68.40%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, RBLY or MSTY?

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

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

MSTY has the higher dividend yield at 251.54%, compared with 197.07% for RBLY.

Which has better risk-adjusted returns?

MSTY currently has the higher Sharpe Ratio (-1.09 vs -1.23), 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.