IRM vs. ROBO

Last updated Jun 13, 2026

IRM (Iron Mountain Incorporated) is a stock, while ROBO (ROBO Global Robotics & Automation Index ETF) is Robotics fund tracking the ROBO Global Robotics and Automation TR Index. Over the past 10 years, IRM returned 19.08%/yr vs 13.12%/yr for ROBO. At a 0.41 correlation, their price movements are largely independent.

Performance

IRM vs. ROBO - Performance Comparison

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

Returns By Period

In the year-to-date period, IRM achieves a 54.64% return, which is significantly higher than ROBO's 19.75% return. Over the past 10 years, IRM has outperformed ROBO with an annualized return of 19.08%, while ROBO has yielded a comparatively lower 13.12% annualized return.

IRM

• 1D: 1.65%
• 1M: 1.74%
• YTD: 54.64%
• 6M: 55.51%
• 1Y: 29.64%
• 3Y*: 35.74%
• 5Y*: 27.45%
• 10Y*: 19.08%

ROBO

• 1D: 0.69%
• 1M: -2.34%
• YTD: 19.75%
• 6M: 18.31%
• 1Y: 47.52%
• 3Y*: 12.64%
• 5Y*: 5.51%
• 10Y*: 13.12%

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

IRM vs. ROBO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IRM Iron Mountain Incorporated	54.64%	-18.24%	54.48%	46.52%	-0.08%	87.74%	0.98%	5.87%	-7.97%	23.56%
ROBO ROBO Global Robotics & Automation Index ETF	19.75%	23.71%	-1.28%	23.74%	-33.92%	15.34%	45.26%	29.51%	-20.92%	44.26%

Correlation

The correlation between IRM and ROBO is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.47
Correlation (3Y) Calculated over the trailing 3-year period	0.47
Correlation (5Y) Calculated over the trailing 5-year period	0.50
Correlation (10Y) Calculated over the trailing 10-year period	0.41
Correlation (All Time) Calculated using the full available price history since Oct 22, 2013	0.41

The correlation between IRM and ROBO has been stable across timeframes, ranging from 0.41 to 0.50 - a consistent structural relationship.

Return for Risk

IRM vs. ROBO — Risk / Return Rank

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

IRM

IRM Risk / Return Rank: 67
IRM Sharpe Ratio Rank: 71
IRM Sortino Ratio Rank: 66
IRM Omega Ratio Rank: 65
IRM Calmar Ratio Rank: 66
IRM Martin Ratio Rank: 67

ROBO

ROBO Risk / Return Rank: 61
ROBO Sharpe Ratio Rank: 64
ROBO Sortino Ratio Rank: 60
ROBO Omega Ratio Rank: 59
ROBO Calmar Ratio Rank: 59
ROBO Martin Ratio Rank: 63

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.

IRM vs. ROBO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Iron Mountain Incorporated (IRM) and ROBO Global Robotics & Automation Index ETF (ROBO). 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.

	IRM	ROBO	Difference
Sharpe ratio: Return per unit of total volatility	0.89	1.82	-0.93
Sortino ratio: Return per unit of downside risk	1.41	2.45	-1.04
Omega ratio: Gain probability vs. loss probability	1.18	1.31	-0.13
Calmar ratio: Return relative to maximum drawdown	1.14	2.58	-1.45
Martin ratio: Return relative to average drawdown	2.73	9.88	-7.15

IRM vs. ROBO - Sharpe Ratio Comparison

The current IRM Sharpe Ratio is 0.89, which is lower than the ROBO Sharpe Ratio of 1.82. The chart below compares the historical Sharpe Ratios of IRM and ROBO, 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

IRM vs. ROBO - Drawdown Comparison

The maximum IRM drawdown since its inception was -55.71%, which is greater than ROBO's maximum drawdown of -43.65%. Use the drawdown chart below to compare losses from any high point for IRM and ROBO.

Drawdown Indicators

	IRM	ROBO	Difference
Max Drawdown Largest peak-to-trough decline	-55.71%	-43.65%	-12.06%
Max Drawdown (1Y) Largest decline over 1 year	-25.15%	-17.35%	-7.80%
Max Drawdown (3Y) Largest decline over 3 years	-39.03%	-27.92%	-11.11%
Max Drawdown (5Y) Largest decline over 5 years	-39.03%	-43.65%	+4.62%
Max Drawdown (10Y) Largest decline over 10 years	-39.03%	-43.65%	+4.62%
Current Drawdown Current decline from peak	-3.65%	-8.12%	+4.47%
Average Drawdown Average peak-to-trough decline	-13.16%	-12.92%	-0.24%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.47%	4.53%	+5.94%

Volatility

IRM vs. ROBO - Volatility Comparison

The current volatility for Iron Mountain Incorporated (IRM) is 7.91%, while ROBO Global Robotics & Automation Index ETF (ROBO) has a volatility of 10.66%. This indicates that IRM experiences smaller price fluctuations and is considered to be less risky than ROBO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IRM	ROBO	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.91%	10.66%	-2.75%
Volatility (6M) Calculated over the trailing 6-month period	24.13%	19.92%	+4.21%
Volatility (1Y) Calculated over the trailing 1-year period	32.04%	24.56%	+7.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	29.68%	23.92%	+5.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.64%	23.30%	+6.34%

Dividends

IRM vs. ROBO - Dividend Comparison

IRM's dividend yield for the trailing twelve months is around 2.59%, more than ROBO's 0.35% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IRM Iron Mountain Incorporated	2.59%	3.88%	2.60%	3.63%	4.96%	4.73%	8.39%	7.69%	7.32%	5.93%	6.17%	7.07%
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 IRM and ROBO in my portfolio?

IRM and ROBO have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IRM or ROBO?

ROBO has higher volatility (10.66%) compared to IRM (7.91%). In terms of maximum drawdown, IRM dropped -55.71% vs ROBO's -43.65%.

Which has better risk-adjusted returns?

ROBO currently has the higher Sharpe Ratio (1.82 vs 0.89), 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.