AIBU vs. MUU

Last updated Jul 14, 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. Over the past year, AIBU returned 46.84% vs 2796.55% for MUU. A 0.57 correlation means they provide meaningful diversification when combined. 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

In the year-to-date period, AIBU achieves a 23.63% return, which is significantly lower than MUU's 575.80% return.

AIBU

• 1D: -3.90%
• 1M: -2.75%
• 6M: 17.79%
• YTD: 23.63%
• 1Y: 46.84%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MUU

• 1D: -9.01%
• 1M: -18.36%
• 6M: 372.65%
• YTD: 575.80%
• 1Y: 2,796.55%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

AIBU vs. MUU - Yearly Performance Comparison

	2026 (YTD)	2025	2024
AIBU Direxion Daily AI and Big Data Bull 2X Shares	23.63%	42.25%	10.95%
MUU Direxion Daily MU Bull 2X Shares	575.80%	599.03%	-40.91%

Correlation

The correlation between AIBU and MUU is 0.51, 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	0.51
Correlation (All Time) Calculated using the full available price history since Oct 10, 2024	0.57

The correlation between AIBU and MUU has been stable across timeframes, ranging from 0.51 to 0.57 - a consistent structural relationship.

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: 29
AIBU Sharpe Ratio Rank: 31
AIBU Sortino Ratio Rank: 33
AIBU Omega Ratio Rank: 32
AIBU Calmar Ratio Rank: 25
AIBU Martin Ratio Rank: 23

MUU

MUU Risk / Return Rank: 99
MUU Sharpe Ratio Rank: 100
MUU Sortino Ratio Rank: 97
MUU Omega Ratio Rank: 96
MUU Calmar Ratio Rank: 100
MUU Martin Ratio Rank: 99

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	0.92	23.95	-23.03
Sortino ratio: Return per unit of downside risk	1.45	5.62	-4.17
Omega ratio: Gain probability vs. loss probability	1.18	1.69	-0.51
Calmar ratio: Return relative to maximum drawdown	0.97	66.09	-65.13
Martin ratio: Return relative to average drawdown	2.26	221.31	-219.05

AIBU vs. MUU - Sharpe Ratio Comparison

The current AIBU Sharpe Ratio is 0.92, which is lower than the MUU Sharpe Ratio of 23.95. The chart below compares the historical Sharpe Ratios of AIBU and MUU, 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

AIBU vs. MUU - Drawdown Comparison

The maximum AIBU drawdown since its inception was -51.17%, smaller than the maximum MUU drawdown of -75.07%. 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%	-75.07%	+23.90%
Max Drawdown (1Y) Largest decline over 1 year	-48.71%	-52.72%	+4.01%
Current Drawdown Current decline from peak	-20.13%	-36.32%	+16.19%
Average Drawdown Average peak-to-trough decline	-13.93%	-23.43%	+9.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	20.75%	16.57%	+4.18%

Volatility

AIBU vs. MUU - Volatility Comparison

The current volatility for Direxion Daily AI and Big Data Bull 2X Shares (AIBU) is 15.96%, while Direxion Daily MU Bull 2X Shares (MUU) has a volatility of 67.81%. This indicates that AIBU experiences smaller price fluctuations and is considered to be less risky than MUU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AIBU	MUU	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.96%	67.81%	-51.85%
Volatility (6M) Calculated over the trailing 6-month period	40.04%	116.35%	-76.31%
Volatility (1Y) Calculated over the trailing 1-year period	51.03%	145.78%	-94.75%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	55.82%	138.10%	-82.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	55.82%	138.10%	-82.28%

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 1.74%, more than MUU's 0.70% yield.

Position	TTM	2025	2024
AIBU Direxion Daily AI and Big Data Bull 2X Shares	1.74%	2.27%	1.33%
MUU Direxion Daily MU Bull 2X Shares	0.70%	4.27%	0.31%

Frequently Asked Questions

Can I hold both AIBU and MUU in my portfolio?

AIBU and MUU have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AIBU or MUU?

MUU has higher volatility (67.81%) compared to AIBU (15.96%). In terms of maximum drawdown, AIBU dropped -51.17% vs MUU's -75.07%.

Which ETF is better, AIBU or MUU?

On 1-year performance, MUU leads with 2796.55% vs 46.84% for AIBU. On fees, AIBU is cheaper at 0.96% per year. On volatility, AIBU has been the lower-risk option at 15.96%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, AIBU or MUU?

Over the 1-year period, MUU has performed better with a 2796.55% return vs 46.84%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

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 1.74%, compared with 0.70% 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.

Which has better risk-adjusted returns?

MUU currently has the higher Sharpe Ratio (23.95 vs 0.92), 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.