AIBU vs. MUU

Last updated Jun 24, 2026

AIBU (Direxion Daily AI and Big Data Bull 2X Shares) and MUU (Direxion Daily MU Bull 2X Shares) are both Leveraged Equities funds from Direxion - AIBU tracks the Solactive US AI & Big Data Index while MUU tracks the Micron Technology, Inc. (200% Daily). Both are passively managed. Their correlation of 0.90 suggests significant overlap in exposure. AIBU charges 0.96%/yr vs 1.01%/yr for MUU.

Performance

AIBU vs. MUU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Direxion Daily AI and Big Data Bull 2X Shares (AIBU) and Direxion Daily MU Bull 2X Shares (MUU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

AIBU

• 1D: -4.43%
• 1M: -3.16%
• YTD: 24.78%
• 6M: 21.08%
• 1Y: 67.41%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MUU

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

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

AIBU vs. MUU - Yearly Performance Comparison

	2026 (YTD)
AIBU Direxion Daily AI and Big Data Bull 2X Shares	-7.83%
MUU Direxion Daily MU Bull 2X Shares	-12.11%

Correlation

The correlation between AIBU and MUU is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (All Time) Calculated using the full available price history since Jun 16, 2026	0.90

Return for Risk

AIBU vs. MUU — Risk / Return Rank

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

AIBU

AIBU Risk / Return Rank: 34
AIBU Sharpe Ratio Rank: 40
AIBU Sortino Ratio Rank: 38
AIBU Omega Ratio Rank: 37
AIBU Calmar Ratio Rank: 30
AIBU Martin Ratio Rank: 26

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.

AIBU vs. MUU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Direxion Daily AI and Big Data Bull 2X Shares (AIBU) 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.

	AIBU	MUU	Difference
Sharpe ratio: Return per unit of total volatility	1.35	—	—
Sortino ratio: Return per unit of downside risk	1.84	—	—
Omega ratio: Gain probability vs. loss probability	1.23	—	—
Calmar ratio: Return relative to maximum drawdown	1.39	—	—
Martin ratio: Return relative to average drawdown	3.34	—	—

Drawdowns

AIBU vs. MUU - Drawdown Comparison

The maximum AIBU drawdown since its inception was -51.17%, which is greater than MUU's maximum drawdown of -26.28%. Use the drawdown chart below to compare losses from any high point for AIBU and MUU.

Drawdown Indicators

	AIBU	MUU	Difference
Max Drawdown Largest peak-to-trough decline	-51.17%	-26.28%	-24.89%
Max Drawdown (1Y) Largest decline over 1 year	-48.71%	—	—
Current Drawdown Current decline from peak	-19.38%	-26.28%	+6.90%
Average Drawdown Average peak-to-trough decline	-13.79%	-10.19%	-3.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	20.26%	—	—

Volatility

Volatility by Period

	AIBU	MUU	Difference
Volatility (1M) Calculated over the trailing 1-month period	21.15%	—	—
Volatility (6M) Calculated over the trailing 6-month period	39.22%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	50.36%	295.32%	-244.96%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	55.97%	295.32%	-239.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	55.97%	295.32%	-239.35%

AIBU vs. MUU - Expense Ratio Comparison

AIBU has a 0.96% expense ratio, which is lower than MUU's 1.01% expense ratio.

Dividends

AIBU vs. MUU - Dividend Comparison

AIBU's dividend yield for the trailing twelve months is around 1.79%, while MUU has not paid dividends to shareholders.

Position	TTM	2025	2024
AIBU Direxion Daily AI and Big Data Bull 2X Shares	1.79%	2.27%	1.33%
MUU Direxion Daily MU Bull 2X Shares	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both AIBU and MUU in my portfolio?

With a correlation of 0.90, AIBU and MUU move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, AIBU or MUU?

On fees, AIBU is cheaper at 0.96% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, AIBU or MUU?

AIBU is cheaper with a 0.96% expense ratio, compared with 1.01% for MUU.

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

AIBU has the higher dividend yield at 1.79%, compared with 0.00% for MUU.

What is the main difference between AIBU and MUU?

AIBU tracks Solactive US AI & Big Data Index, while MUU tracks Micron Technology, Inc. (200% Daily). Their fees differ too: 0.96% for AIBU and 1.01% for MUU.