MAR vs. IRM

Last updated Jun 16, 2026

MAR (Marriott International, Inc.) and IRM (Iron Mountain Incorporated) are both stocks. MAR operates in Lodging (Consumer Cyclical), while IRM operates in REIT - Specialty (Real Estate). Over the past 10 years, MAR returned 20.77%/yr vs 19.01%/yr for IRM. At a 0.30 correlation, their price movements are largely independent.

Performance

MAR vs. IRM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Marriott International, Inc. (MAR) and Iron Mountain Incorporated (IRM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MAR achieves a 29.64% return, which is significantly lower than IRM's 54.53% return. Over the past 10 years, MAR has outperformed IRM with an annualized return of 20.77%, while IRM has yielded a comparatively lower 19.01% annualized return.

MAR

• 1D: -0.47%
• 1M: 13.66%
• YTD: 29.64%
• 6M: 30.38%
• 1Y: 58.51%
• 3Y*: 32.71%
• 5Y*: 23.83%
• 10Y*: 20.77%

IRM

• 1D: -0.08%
• 1M: 1.66%
• YTD: 54.53%
• 6M: 55.48%
• 1Y: 29.54%
• 3Y*: 34.90%
• 5Y*: 27.60%
• 10Y*: 19.01%

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

MAR vs. IRM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MAR Marriott International, Inc.	29.64%	12.31%	24.92%	53.06%	-9.34%	25.26%	-12.53%	41.49%	-19.05%	66.24%
IRM Iron Mountain Incorporated	54.53%	-18.24%	54.48%	46.52%	-0.08%	87.74%	0.98%	5.87%	-7.97%	23.56%

Correlation

The correlation between MAR and IRM 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 (3Y) Calculated over the trailing 3-year period	0.38
Correlation (5Y) Calculated over the trailing 5-year period	0.36
Correlation (10Y) Calculated over the trailing 10-year period	0.32
Correlation (All Time) Calculated using the full available price history since Feb 1, 1996	0.30

Fundamentals

EPS MAR : $12.66 IRM : $0.91
PE Ratio MAR : 31.65 IRM : 138.03
PS Ratio MAR : 3.76 IRM : 5.19
Total Revenue (TTM) MAR : $21.73B IRM : $7.25B
Gross Profit (TTM) MAR : $1.31B IRM : $2.94B
EBITDA (TTM) MAR : $3.81B IRM : $2.40B

Return for Risk

MAR vs. IRM — Risk / Return Rank

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

MAR

MAR Risk / Return Rank: 90
MAR Sharpe Ratio Rank: 91
MAR Sortino Ratio Rank: 92
MAR Omega Ratio Rank: 88
MAR Calmar Ratio Rank: 91
MAR Martin Ratio Rank: 90

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

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.

MAR vs. IRM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Marriott International, Inc. (MAR) and Iron Mountain Incorporated (IRM). 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.

	MAR	IRM	Difference
Sharpe ratio: Return per unit of total volatility	2.25	0.93	+1.33
Sortino ratio: Return per unit of downside risk	3.28	1.45	+1.83
Omega ratio: Gain probability vs. loss probability	1.38	1.18	+0.19
Calmar ratio: Return relative to maximum drawdown	4.65	1.18	+3.47
Martin ratio: Return relative to average drawdown	11.74	2.83	+8.91

MAR vs. IRM - Sharpe Ratio Comparison

The current MAR Sharpe Ratio is 2.25, which is higher than the IRM Sharpe Ratio of 0.93. The chart below compares the historical Sharpe Ratios of MAR and IRM, 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

MAR vs. IRM - Drawdown Comparison

The maximum MAR drawdown since its inception was -75.59%, which is greater than IRM's maximum drawdown of -55.71%. Use the drawdown chart below to compare losses from any high point for MAR and IRM.

Drawdown Indicators

	MAR	IRM	Difference
Max Drawdown Largest peak-to-trough decline	-75.59%	-55.71%	-19.88%
Max Drawdown (1Y) Largest decline over 1 year	-12.65%	-25.15%	+12.50%
Max Drawdown (3Y) Largest decline over 3 years	-30.50%	-39.03%	+8.53%
Max Drawdown (5Y) Largest decline over 5 years	-30.50%	-39.03%	+8.53%
Max Drawdown (10Y) Largest decline over 10 years	-61.26%	-39.03%	-22.23%
Current Drawdown Current decline from peak	-0.47%	-3.72%	+3.25%
Average Drawdown Average peak-to-trough decline	-14.89%	-13.16%	-1.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.00%	10.47%	-5.47%

Volatility

MAR vs. IRM - Volatility Comparison

The current volatility for Marriott International, Inc. (MAR) is 7.01%, while Iron Mountain Incorporated (IRM) has a volatility of 7.80%. This indicates that MAR experiences smaller price fluctuations and is considered to be less risky than IRM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MAR	IRM	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.01%	7.80%	-0.79%
Volatility (6M) Calculated over the trailing 6-month period	19.73%	24.00%	-4.27%
Volatility (1Y) Calculated over the trailing 1-year period	26.14%	32.05%	-5.91%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.86%	29.69%	-0.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	32.91%	29.65%	+3.26%

Dividends

MAR vs. IRM - Dividend Comparison

MAR's dividend yield for the trailing twelve months is around 0.68%, less than IRM's 3.30% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IRM Iron Mountain Incorporated	3.30%	3.88%	2.60%	3.63%	4.96%	4.73%	8.39%	7.69%	7.32%	5.93%	6.17%	7.07%
MAR Marriott International, Inc.	0.68%	0.85%	0.86%	0.87%	0.67%	0.00%	0.36%	1.22%	1.44%	0.95%	1.39%	1.42%

Financials

Frequently Asked Questions

Can I hold both MAR and IRM in my portfolio?

MAR and IRM 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, MAR or IRM?

IRM has higher volatility (7.80%) compared to MAR (7.01%). In terms of maximum drawdown, MAR dropped -75.59% vs IRM's -55.71%.

Which has better risk-adjusted returns?

MAR currently has the higher Sharpe Ratio (2.25 vs 0.93), 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.