RKLX vs. MUU

Last updated Jun 24, 2026

RKLX (Defiance Daily Target 2X Long RKLB ETF) and MUU (Direxion Daily MU Bull 2X Shares) are both Leveraged Equities funds. RKLX is actively managed, while MUU is passively managed. At a 0.20 correlation, their price movements are largely independent. RKLX charges 1.29%/yr vs 1.01%/yr for MUU.

Performance

RKLX vs. MUU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Defiance Daily Target 2X Long RKLB ETF (RKLX) and Direxion Daily MU Bull 2X Shares (MUU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

RKLX

• 1D: -10.27%
• 1M: -56.29%
• YTD: 2.51%
• 6M: -17.39%
• 1Y: 185.10%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MUU

• 1D: -26.28%
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

RKLX vs. MUU - Yearly Performance Comparison

	2026 (YTD)
RKLX Defiance Daily Target 2X Long RKLB ETF	-25.43%
MUU Direxion Daily MU Bull 2X Shares	-12.11%

Correlation

The correlation between RKLX and MUU is 0.20, 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 Jun 16, 2026	0.20

Return for Risk

RKLX vs. MUU — Risk / Return Rank

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

RKLX

RKLX Risk / Return Rank: 44
RKLX Sharpe Ratio Rank: 30
RKLX Sortino Ratio Rank: 53
RKLX Omega Ratio Rank: 47
RKLX Calmar Ratio Rank: 57
RKLX Martin Ratio Rank: 35

MUU

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

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.

RKLX vs. MUU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Defiance Daily Target 2X Long RKLB ETF (RKLX) and Direxion Daily MU Bull 2X Shares (MUU). 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.

	RKLX	MUU	Difference
Sharpe ratio: Return per unit of total volatility	1.01	—	—
Sortino ratio: Return per unit of downside risk	2.34	—	—
Omega ratio: Gain probability vs. loss probability	1.28	—	—
Calmar ratio: Return relative to maximum drawdown	2.60	—	—
Martin ratio: Return relative to average drawdown	4.84	—	—

Drawdowns

RKLX vs. MUU - Drawdown Comparison

The maximum RKLX drawdown since its inception was -71.71%, which is greater than MUU's maximum drawdown of -26.28%. Use the drawdown chart below to compare losses from any high point for RKLX and MUU.

Drawdown Indicators

	RKLX	MUU	Difference
Max Drawdown Largest peak-to-trough decline	-71.71%	-26.28%	-45.43%
Max Drawdown (1Y) Largest decline over 1 year	-71.71%	—	—
Current Drawdown Current decline from peak	-64.12%	-26.28%	-37.84%
Average Drawdown Average peak-to-trough decline	-26.92%	-10.19%	-16.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	38.42%	—	—

Volatility

Volatility by Period

	RKLX	MUU	Difference
Volatility (1M) Calculated over the trailing 1-month period	62.72%	—	—
Volatility (6M) Calculated over the trailing 6-month period	142.12%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	185.83%	295.32%	-109.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	182.53%	295.32%	-112.79%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	182.53%	295.32%	-112.79%

RKLX vs. MUU - Expense Ratio Comparison

RKLX has a 1.29% expense ratio, which is higher than MUU's 1.01% expense ratio.

Dividends

RKLX vs. MUU - Dividend Comparison

RKLX's dividend yield for the trailing twelve months is around 14.58%, while MUU has not paid dividends to shareholders.

Position	TTM	2025
MUU Direxion Daily MU Bull 2X Shares	0.00%	0.00%
RKLX Defiance Daily Target 2X Long RKLB ETF	14.58%	14.94%

Frequently Asked Questions

Can I hold both RKLX and MUU in my portfolio?

RKLX and MUU have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, RKLX or MUU?

On fees, MUU is cheaper at 1.01% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, RKLX or MUU?

MUU is cheaper with a 1.01% expense ratio, compared with 1.29% for RKLX.

Which ETF pays a higher dividend yield, RKLX or MUU?

RKLX has the higher dividend yield at 14.58%, compared with 0.00% for MUU.

What is the main difference between RKLX and MUU?

They also come from different issuers: Defiance and Direxion. Their fees differ too: 1.29% for RKLX and 1.01% for MUU.