TMFE vs. MUU

Last updated Jul 12, 2026

TMFE (The RBB Fund, Inc. - Motley Fool High Capital Efficiency Index ETF) and MUU (Direxion Daily MU Bull 2X Shares) are both exchange-traded funds - TMFE is a Large Cap Blend Equities fund tracking the Motley Fool Capital Efficiency 100 Index, while MUU is a Leveraged Equities fund tracking the Micron Technology, Inc. (200% Daily). Both are passively managed. Over the past year, TMFE returned 8.54% vs 3083.51% for MUU. At a 0.37 correlation, their price movements are largely independent. TMFE charges 0.50%/yr vs 1.01%/yr for MUU.

Performance

TMFE vs. MUU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in The RBB Fund, Inc. - Motley Fool High Capital Efficiency Index ETF (TMFE) 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, TMFE achieves a 3.07% return, which is significantly lower than MUU's 642.75% return.

TMFE

• 1D: 0.20%
• 1M: 2.52%
• 6M: 1.28%
• YTD: 3.07%
• 1Y: 8.54%
• 3Y*: 17.89%
• 5Y*: —
• 10Y*: —

MUU

• 1D: -2.52%
• 1M: -10.27%
• 6M: 421.21%
• YTD: 642.75%
• 1Y: 3,083.51%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

TMFE vs. MUU - Yearly Performance Comparison

	2026 (YTD)	2025	2024
TMFE The RBB Fund, Inc. - Motley Fool High Capital Efficiency Index ETF	3.07%	11.10%	0.54%
MUU Direxion Daily MU Bull 2X Shares	642.75%	599.03%	-40.91%

Correlation

The correlation between TMFE and MUU is 0.31, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.31
Correlation (All Time) Calculated using the full available price history since Oct 10, 2024	0.37

Return for Risk

TMFE vs. MUU — Risk / Return Rank

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

TMFE

TMFE Risk / Return Rank: 21
TMFE Sharpe Ratio Rank: 21
TMFE Sortino Ratio Rank: 19
TMFE Omega Ratio Rank: 19
TMFE Calmar Ratio Rank: 19
TMFE Martin Ratio Rank: 24

MUU

MUU Risk / Return Rank: 99
MUU Sharpe Ratio Rank: 100
MUU Sortino Ratio Rank: 97
MUU Omega Ratio Rank: 97
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.

TMFE vs. MUU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for The RBB Fund, Inc. - Motley Fool High Capital Efficiency Index ETF (TMFE) 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.

	TMFE	MUU	Difference
Sharpe ratio: Return per unit of total volatility	0.60	27.27	-26.67
Sortino ratio: Return per unit of downside risk	0.93	5.80	-4.87
Omega ratio: Gain probability vs. loss probability	1.11	1.72	-0.61
Calmar ratio: Return relative to maximum drawdown	0.67	75.03	-74.36
Martin ratio: Return relative to average drawdown	2.45	245.78	-243.33

TMFE vs. MUU - Sharpe Ratio Comparison

The current TMFE Sharpe Ratio is 0.60, which is lower than the MUU Sharpe Ratio of 27.27. The chart below compares the historical Sharpe Ratios of TMFE 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

TMFE vs. MUU - Drawdown Comparison

The maximum TMFE drawdown since its inception was -31.21%, smaller than the maximum MUU drawdown of -75.07%. Use the drawdown chart below to compare losses from any high point for TMFE and MUU.

Drawdown Indicators

	TMFE	MUU	Difference
Max Drawdown Largest peak-to-trough decline	-31.21%	-75.07%	+43.86%
Max Drawdown (1Y) Largest decline over 1 year	-11.30%	-52.72%	+41.42%
Max Drawdown (3Y) Largest decline over 3 years	-18.81%	—	—
Current Drawdown Current decline from peak	-0.30%	-30.01%	+29.71%
Average Drawdown Average peak-to-trough decline	-8.20%	-23.40%	+15.20%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.10%	16.41%	-13.31%

Volatility

TMFE vs. MUU - Volatility Comparison

The current volatility for The RBB Fund, Inc. - Motley Fool High Capital Efficiency Index ETF (TMFE) is 4.50%, while Direxion Daily MU Bull 2X Shares (MUU) has a volatility of 67.23%. This indicates that TMFE 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

	TMFE	MUU	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.50%	67.23%	-62.73%
Volatility (6M) Calculated over the trailing 6-month period	9.99%	116.08%	-106.09%
Volatility (1Y) Calculated over the trailing 1-year period	12.60%	145.04%	-132.44%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.17%	138.03%	-118.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.17%	138.03%	-118.86%

TMFE vs. MUU - Expense Ratio Comparison

TMFE has a 0.50% expense ratio, which is lower than MUU's 1.01% expense ratio.

Dividends

TMFE vs. MUU - Dividend Comparison

TMFE's dividend yield for the trailing twelve months is around 0.31%, less than MUU's 0.64% yield.

Position	TTM	2025	2024	2023	2022
MUU Direxion Daily MU Bull 2X Shares	0.64%	4.27%	0.31%	0.00%	0.00%
TMFE The RBB Fund, Inc. - Motley Fool High Capital Efficiency Index ETF	0.31%	0.32%	0.44%	0.45%	0.40%

Frequently Asked Questions

Can I hold both TMFE and MUU in my portfolio?

TMFE and MUU have a correlation of 0.31, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TMFE or MUU?

MUU has higher volatility (67.23%) compared to TMFE (4.50%). In terms of maximum drawdown, TMFE dropped -31.21% vs MUU's -75.07%.

Which ETF is better, TMFE or MUU?

On 1-year performance, MUU leads with 3083.51% vs 8.54% for TMFE. On fees, TMFE is cheaper at 0.50% per year. On volatility, TMFE has been the lower-risk option at 4.50%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TMFE or MUU?

Over the 1-year period, MUU has performed better with a 3083.51% return vs 8.54%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TMFE or MUU?

TMFE is cheaper with a 0.50% expense ratio, compared with 1.01% for MUU.

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

MUU has the higher dividend yield at 0.64%, compared with 0.31% for TMFE.

What is the main difference between TMFE and MUU?

TMFE is categorized as Large Cap Blend Equities, while MUU is Leveraged Equities. TMFE tracks Motley Fool Capital Efficiency 100 Index, while MUU tracks Micron Technology, Inc. (200% Daily). They also come from different issuers: RBB Fund and Direxion. Their fees differ too: 0.50% for TMFE and 1.01% for MUU.

Which has better risk-adjusted returns?

MUU currently has the higher Sharpe Ratio (27.27 vs 0.60), 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.