REW vs. MUU

Last updated Jul 17, 2026

REW (ProShares UltraShort Technology) and MUU (Direxion Daily MU Bull 2X Shares) are both Leveraged Equities funds - REW tracks the Dow Jones U.S. Technology Index (-200%) while MUU tracks the Micron Technology, Inc. (200% Daily). Both are passively managed. Over the past year, REW returned -51.65% vs 2599.25% for MUU. At a correlation of -0.68, they often move in opposite directions. REW charges 0.95%/yr vs 1.01%/yr for MUU.

Performance

REW vs. MUU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares UltraShort Technology (REW) 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, REW achieves a -39.78% return, which is significantly lower than MUU's 449.17% return.

REW

• 1D: 4.43%
• 1M: 8.43%
• 6M: -38.44%
• YTD: -39.78%
• 1Y: -51.65%
• 3Y*: -41.91%
• 5Y*: -36.52%
• 10Y*: -43.85%

MUU

• 1D: -12.02%
• 1M: -37.86%
• 6M: 305.92%
• YTD: 449.17%
• 1Y: 2,599.25%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

REW vs. MUU - Yearly Performance Comparison

	2026 (YTD)	2025	2024
REW ProShares UltraShort Technology	-39.78%	-43.15%	-1.43%
MUU Direxion Daily MU Bull 2X Shares	449.17%	599.03%	-40.91%

Correlation

The correlation between REW and MUU is -0.68, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.68
Correlation (All Time) Calculated using the full available price history since Oct 10, 2024	-0.68

The correlation between REW and MUU has been stable across timeframes, ranging from -0.68 to -0.68 - a consistent structural relationship.

Return for Risk

REW vs. MUU — Risk / Return Rank

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

REW

REW Risk / Return Rank: 1
REW Sharpe Ratio Rank: 1
REW Sortino Ratio Rank: 1
REW Omega Ratio Rank: 2
REW Calmar Ratio Rank: 2
REW Martin Ratio Rank: 0

MUU

MUU Risk / Return Rank: 98
MUU Sharpe Ratio Rank: 100
MUU Sortino Ratio Rank: 97
MUU Omega Ratio Rank: 95
MUU Calmar Ratio Rank: 99
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.

REW vs. MUU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort Technology (REW) 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.

	REW	MUU	Difference
Sharpe ratio: Return per unit of total volatility	-1.04	17.30	-18.34
Sortino ratio: Return per unit of downside risk	-1.72	5.00	-6.72
Omega ratio: Gain probability vs. loss probability	0.82	1.63	-0.81
Calmar ratio: Return relative to maximum drawdown	-0.86	47.69	-48.55
Martin ratio: Return relative to average drawdown	-1.75	152.81	-154.57

REW vs. MUU - Sharpe Ratio Comparison

The current REW Sharpe Ratio is -1.04, which is lower than the MUU Sharpe Ratio of 17.30. The chart below compares the historical Sharpe Ratios of REW 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

REW vs. MUU - Drawdown Comparison

The maximum REW drawdown since its inception was -99.99%, which is greater than MUU's maximum drawdown of -75.07%. Use the drawdown chart below to compare losses from any high point for REW and MUU.

Drawdown Indicators

	REW	MUU	Difference
Max Drawdown Largest peak-to-trough decline	-99.99%	-75.07%	-24.92%
Max Drawdown (1Y) Largest decline over 1 year	-60.10%	-55.25%	-4.85%
Max Drawdown (3Y) Largest decline over 3 years	-86.76%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-93.62%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-99.74%	—	—
Current Drawdown Current decline from peak	-99.99%	-55.25%	-44.74%
Average Drawdown Average peak-to-trough decline	-86.94%	-23.62%	-63.32%
Ulcer Index Depth and duration of drawdowns from previous peaks	29.45%	17.31%	+12.14%

Volatility

REW vs. MUU - Volatility Comparison

The current volatility for ProShares UltraShort Technology (REW) is 19.92%, while Direxion Daily MU Bull 2X Shares (MUU) has a volatility of 62.52%. This indicates that REW 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

	REW	MUU	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.92%	62.52%	-42.60%
Volatility (6M) Calculated over the trailing 6-month period	42.41%	125.23%	-82.82%
Volatility (1Y) Calculated over the trailing 1-year period	49.67%	152.52%	-102.85%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	52.97%	142.32%	-89.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	49.45%	142.32%	-92.87%

REW vs. MUU - Expense Ratio Comparison

REW has a 0.95% expense ratio, which is lower than MUU's 1.01% expense ratio.

Dividends

REW vs. MUU - Dividend Comparison

REW's dividend yield for the trailing twelve months is around 8.27%, more than MUU's 1.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018
MUU Direxion Daily MU Bull 2X Shares	1.24%	4.27%	0.31%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
REW ProShares UltraShort Technology	8.27%	6.69%	5.68%	5.97%	0.65%	0.00%	0.27%	1.80%	0.51%

Frequently Asked Questions

Can I hold both REW and MUU in my portfolio?

REW and MUU have a correlation of -0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, REW or MUU?

MUU has higher volatility (62.52%) compared to REW (19.92%). In terms of maximum drawdown, REW dropped -99.99% vs MUU's -75.07%.

Which ETF is better, REW or MUU?

On 1-year performance, MUU leads with 2599.25% vs -51.65% for REW. On fees, REW is cheaper at 0.95% per year. On volatility, REW has been the lower-risk option at 19.92%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, REW or MUU?

Over the 1-year period, MUU has performed better with a 2599.25% return vs -51.65%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, REW or MUU?

REW is cheaper with a 0.95% expense ratio, compared with 1.01% for MUU.

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

REW has the higher dividend yield at 8.27%, compared with 1.24% for MUU.

What is the main difference between REW and MUU?

REW tracks Dow Jones U.S. Technology Index (-200%), while MUU tracks Micron Technology, Inc. (200% Daily). They also come from different issuers: ProShares and Direxion. Their fees differ too: 0.95% for REW and 1.01% for MUU.

Which has better risk-adjusted returns?

MUU currently has the higher Sharpe Ratio (17.30 vs -1.04), 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.