ROBO vs. MU

Last updated Jun 9, 2026

ROBO (ROBO Global Robotics & Automation Index ETF) is Robotics fund tracking the ROBO Global Robotics and Automation TR Index, while MU (Micron Technology, Inc.) is a stock. Over the past 10 years, ROBO returned 13.02%/yr vs 55.03%/yr for MU. A 0.58 correlation means they provide meaningful diversification when combined.

Performance

ROBO vs. MU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ROBO Global Robotics & Automation Index ETF (ROBO) and Micron Technology, Inc. (MU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ROBO achieves a 21.67% return, which is significantly lower than MU's 232.74% return. Over the past 10 years, ROBO has underperformed MU with an annualized return of 13.02%, while MU has yielded a comparatively higher 55.03% annualized return.

ROBO

• 1D: 1.14%
• 1M: -2.60%
• YTD: 21.67%
• 6M: 19.42%
• 1Y: 48.39%
• 3Y*: 14.36%
• 5Y*: 5.97%
• 10Y*: 13.02%

MU

• 1D: 9.87%
• 1M: 27.11%
• YTD: 232.74%
• 6M: 284.77%
• 1Y: 776.52%
• 3Y*: 144.94%
• 5Y*: 65.39%
• 10Y*: 55.03%

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

ROBO vs. MU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ROBO ROBO Global Robotics & Automation Index ETF	21.67%	23.71%	-1.28%	23.74%	-33.92%	15.34%	45.26%	29.51%	-20.92%	44.26%
MU Micron Technology, Inc.	232.74%	240.24%	-0.96%	71.93%	-45.93%	24.21%	39.79%	69.49%	-22.84%	87.59%

Correlation

The correlation between ROBO and MU 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 (3Y) Calculated over the trailing 3-year period	0.56
Correlation (5Y) Calculated over the trailing 5-year period	0.60
Correlation (10Y) Calculated over the trailing 10-year period	0.60
Correlation (All Time) Calculated using the full available price history since Oct 23, 2013	0.58

The correlation between ROBO and MU has been stable across timeframes, ranging from 0.51 to 0.60 - a consistent structural relationship.

Return for Risk

ROBO vs. MU — Risk / Return Rank

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

ROBO

ROBO Risk / Return Rank: 65
ROBO Sharpe Ratio Rank: 69
ROBO Sortino Ratio Rank: 65
ROBO Omega Ratio Rank: 64
ROBO Calmar Ratio Rank: 62
ROBO Martin Ratio Rank: 66

MU

MU Risk / Return Rank: 99
MU Sharpe Ratio Rank: 100
MU Sortino Ratio Rank: 99
MU Omega Ratio Rank: 98
MU Calmar Ratio Rank: 100
MU Martin Ratio Rank: 100

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.

ROBO vs. MU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ROBO Global Robotics & Automation Index ETF (ROBO) and Micron Technology, Inc. (MU). 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.

	ROBO	MU	Difference
Sharpe ratio: Return per unit of total volatility	2.04	11.44	-9.40
Sortino ratio: Return per unit of downside risk	2.70	6.27	-3.57
Omega ratio: Gain probability vs. loss probability	1.35	1.81	-0.47
Calmar ratio: Return relative to maximum drawdown	2.80	25.90	-23.10
Martin ratio: Return relative to average drawdown	11.09	100.37	-89.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ROBO vs. MU - Sharpe Ratio Comparison

The current ROBO Sharpe Ratio is 2.04, which is lower than the MU Sharpe Ratio of 11.44. The chart below compares the historical Sharpe Ratios of ROBO and MU, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ROBO	MU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.04	11.44	-9.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.25	1.24	-0.99
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.56	1.11	-0.54
Sharpe Ratio (All Time) Calculated using the full available price history	0.47	0.31	+0.16

Drawdowns

ROBO vs. MU - Drawdown Comparison

The maximum ROBO drawdown since its inception was -43.65%, smaller than the maximum MU drawdown of -98.25%. Use the drawdown chart below to compare losses from any high point for ROBO and MU.

Drawdown Indicators

	ROBO	MU	Difference
Max Drawdown Largest peak-to-trough decline	-43.65%	-98.25%	+54.60%
Max Drawdown (1Y) Largest decline over 1 year	-17.35%	-30.28%	+12.93%
Max Drawdown (3Y) Largest decline over 3 years	-27.92%	-57.63%	+29.71%
Max Drawdown (5Y) Largest decline over 5 years	-43.65%	-57.63%	+13.98%
Max Drawdown (10Y) Largest decline over 10 years	-43.65%	-57.63%	+13.98%
Current Drawdown Current decline from peak	-6.65%	-12.07%	+5.42%
Average Drawdown Average peak-to-trough decline	-12.93%	-58.19%	+45.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.38%	7.80%	-3.42%

Volatility

ROBO vs. MU - Volatility Comparison

The current volatility for ROBO Global Robotics & Automation Index ETF (ROBO) is 9.66%, while Micron Technology, Inc. (MU) has a volatility of 34.16%. This indicates that ROBO experiences smaller price fluctuations and is considered to be less risky than MU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ROBO	MU	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.66%	34.16%	-24.50%
Volatility (6M) Calculated over the trailing 6-month period	19.04%	56.74%	-37.70%
Volatility (1Y) Calculated over the trailing 1-year period	23.89%	68.70%	-44.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.79%	52.91%	-29.12%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.24%	49.99%	-26.75%

Dividends

ROBO vs. MU - Dividend Comparison

ROBO's dividend yield for the trailing twelve months is around 0.35%, more than MU's 0.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MU Micron Technology, Inc.	0.05%	0.16%	0.55%	0.54%	0.89%	0.21%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
ROBO ROBO Global Robotics & Automation Index ETF	0.35%	0.42%	0.55%	0.05%	0.00%	0.18%	0.20%	0.37%	0.37%	0.02%	0.19%	0.28%

Frequently Asked Questions

Can I hold both ROBO and MU in my portfolio?

ROBO and MU 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, ROBO or MU?

MU has higher volatility (34.16%) compared to ROBO (9.66%). In terms of maximum drawdown, ROBO dropped -43.65% vs MU's -98.25%.

Which has better risk-adjusted returns?

MU currently has the higher Sharpe Ratio (11.44 vs 2.04), 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.