IRM vs. MAA: A Head-to-Head Stock Comparison

Updated on October 3, 2025

Here’s a clear look at IRM and MAA, comparing key factors like historical performance, profitability, financial strength, growth, dividend, and valuation.

Company Profile

Both IRM and MAA are Real Estate Investment Trusts (REITs). These entities are required to distribute the majority of their taxable income to shareholders, often resulting in higher dividend yields.

Symbol	IRM	MAA
Company Name	Iron Mountain Incorporated	Mid-America Apartment Communities, Inc.
Country	United States	United States
GICS Sector	Real Estate	Real Estate
GICS Industry	Specialized REITs	Residential REITs
Market Capitalization	30.20 billion USD	16.75 billion USD
Exchange	NYSE	NYSE
Listing Date	February 1, 1996	January 28, 1994
Security Type	REIT	REIT

Historical Performance

This chart compares the performance of IRM and MAA by tracking the growth of an initial $10,000 investment in each. Use the tabs to select the desired time period. Data is adjusted for dividends and splits.

IRM vs. MAA: Growth of a $10,000 investment over the past one year.

Historical Performance at a Glance

Symbol	IRM	MAA
5-Day Price Return	1.45%	-0.50%
13-Week Price Return	2.33%	-5.59%
26-Week Price Return	19.59%	-15.06%
52-Week Price Return	-13.94%	-11.43%
Month-to-Date Return	0.31%	-4.18%
Year-to-Date Return	-2.71%	-9.60%
10-Day Avg. Volume	1.63M	0.86M
3-Month Avg. Volume	1.53M	0.90M
3-Month Volatility	28.14%	19.28%
Beta	1.15	0.80

Profitability

Return on Equity (TTM)

IRM

85.19%

Specialized REITs Industry

Max: 21.01%
Q3: 17.78%
Median: 8.42%
Q1: 6.83%
Min: -1.71%

IRM’s Return on Equity of 85.19% is exceptionally high, placing it well beyond the typical range for the Specialized REITs industry. This demonstrates a superior ability to generate profit from shareholder investments, though it could also be inflated by high financial leverage.

MAA

9.60%

Residential REITs Industry

Max: 17.50%
Q3: 9.60%
Median: 6.78%
Q1: 3.88%
Min: -0.69%

MAA’s Return on Equity of 9.60% is on par with the norm for the Residential REITs industry, indicating its profitability relative to shareholder equity is typical for the sector.

IRM vs. MAA: A comparison of their Return on Equity (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Net Profit Margin (TTM)

IRM

0.64%

Specialized REITs Industry

Max: 70.20%
Q3: 38.00%
Median: 23.98%
Q1: 6.53%
Min: -1.41%

In the Specialized REITs industry, Net Profit Margin is often not the primary profitability metric.

MAA

25.98%

Residential REITs Industry

Max: 53.28%
Q3: 43.51%
Median: 25.98%
Q1: 9.99%
Min: -0.30%

In the Residential REITs industry, Net Profit Margin is often not the primary profitability metric.

IRM vs. MAA: A comparison of their Net Profit Margin (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Operating Profit Margin (TTM)

IRM

16.17%

Specialized REITs Industry

Max: 107.13%
Q3: 54.03%
Median: 42.12%
Q1: 16.28%
Min: 5.86%

In the Specialized REITs industry, Operating Profit Margin is often not the primary measure of operational efficiency.

MAA

29.76%

Residential REITs Industry

Max: 54.66%
Q3: 47.76%
Median: 29.76%
Q1: 18.99%
Min: -0.66%

In the Residential REITs industry, Operating Profit Margin is often not the primary measure of operational efficiency.

IRM vs. MAA: A comparison of their Operating Profit Margin (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Profitability at a Glance

Symbol	IRM	MAA
Return on Equity (TTM)	85.19%	9.60%
Return on Assets (TTM)	0.22%	4.84%
Net Profit Margin (TTM)	0.64%	25.98%
Operating Profit Margin (TTM)	16.17%	29.76%
Gross Profit Margin (TTM)	66.77%	58.85%

Financial Strength

Current Ratio (MRQ)

IRM

0.63

Specialized REITs Industry

Max: 1.74
Q3: 1.08
Median: 0.58
Q1: 0.34
Min: 0.10

IRM’s Current Ratio of 0.63 aligns with the median group of the Specialized REITs industry, indicating that its short-term liquidity is in line with its sector peers.

MAA

0.13

Residential REITs Industry

Max: 1.58
Q3: 0.84
Median: 0.56
Q1: 0.10
Min: 0.00

MAA’s Current Ratio of 0.13 aligns with the median group of the Residential REITs industry, indicating that its short-term liquidity is in line with its sector peers.

IRM vs. MAA: A comparison of their Current Ratio (MRQ) against their respective Specialized REITs and Residential REITs industry benchmarks.

Debt-to-Equity Ratio (MRQ)

IRM

685.59

Specialized REITs Industry

Max: 5.86
Q3: 3.80
Median: 1.22
Q1: 0.73
Min: 0.16

With a Debt-to-Equity Ratio of 685.59, IRM operates with exceptionally high leverage compared to the Specialized REITs industry norm. This suggests an aggressive reliance on debt financing, which can magnify returns but also significantly elevates financial risk.

MAA

0.85

Residential REITs Industry

Max: 1.64
Q3: 1.10
Median: 0.83
Q1: 0.68
Min: 0.28

MAA’s Debt-to-Equity Ratio of 0.85 is typical for the Residential REITs industry, indicating its use of leverage is in line with the sector norm. This suggests a balanced approach to its capital structure.

IRM vs. MAA: A comparison of their Debt-to-Equity Ratio (MRQ) against their respective Specialized REITs and Residential REITs industry benchmarks.

Interest Coverage Ratio (TTM)

IRM

1.36

Specialized REITs Industry

Max: 5.24
Q3: 3.92
Median: 2.94
Q1: 2.07
Min: 1.14

In the lower quartile for the Specialized REITs industry, IRM’s Interest Coverage Ratio of 1.36 indicates a tighter cushion for servicing debt, suggesting less financial flexibility than many of its competitors.

MAA

4.01

Residential REITs Industry

Max: 5.11
Q3: 4.01
Median: 2.53
Q1: 1.52
Min: 0.52

MAA’s Interest Coverage Ratio of 4.01 is positioned comfortably within the norm for the Residential REITs industry, indicating a standard and healthy capacity to cover its interest payments.

IRM vs. MAA: A comparison of their Interest Coverage Ratio (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Financial Strength at a Glance

Symbol	IRM	MAA
Current Ratio (MRQ)	0.63	0.13
Quick Ratio (MRQ)	0.54	0.05
Debt-to-Equity Ratio (MRQ)	685.59	0.85
Interest Coverage Ratio (TTM)	1.36	4.01

Growth

Revenue Growth

IRM vs. MAA: A side-by-side comparison of their Revenue Growth for the MRQ (YoY), TTM (YoY), 3-Year CAGR, and 5-Year CAGR periods.

EPS Growth

IRM vs. MAA: A side-by-side comparison of their EPS Growth for the MRQ (YoY), TTM (YoY), 3-Year CAGR, and 5-Year CAGR periods.

Dividend

Dividend Yield (TTM)

IRM

2.84%

Specialized REITs Industry

Max: 6.92%
Q3: 5.29%
Median: 4.71%
Q1: 3.25%
Min: 2.16%

IRM’s Dividend Yield of 2.84% is in the lower quartile for the Specialized REITs industry. This suggests the company’s strategy likely favors retaining earnings for growth over providing a high dividend income.

MAA

4.29%

Residential REITs Industry

Max: 4.67%
Q3: 4.30%
Median: 3.71%
Q1: 3.53%
Min: 3.04%

MAA’s Dividend Yield of 4.29% is consistent with its peers in the Residential REITs industry, providing a dividend return that is standard for its sector.

IRM vs. MAA: A comparison of their Dividend Yield (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Dividend Payout Ratio (TTM)

IRM

400.99%

Specialized REITs Industry

Max: 338.69%
Q3: 202.75%
Median: 125.21%
Q1: 107.89%
Min: 16.73%

At 400.99%, IRM’s Dividend Payout Ratio is exceptionally high, exceeding the typical range for the Specialized REITs industry. While this provides a significant return to shareholders, it may limit funds for reinvestment and could be difficult to sustain.

MAA

122.73%

Residential REITs Industry

Max: 214.13%
Q3: 138.72%
Median: 103.63%
Q1: 84.15%
Min: 22.05%

MAA’s Dividend Payout Ratio of 122.73% is within the typical range for the Residential REITs industry, suggesting a balanced approach between shareholder payouts and company reinvestment.

IRM vs. MAA: A comparison of their Dividend Payout Ratio (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Dividend at a Glance

Symbol	IRM	MAA
Dividend Yield (TTM)	2.84%	4.29%
Dividend Payout Ratio (TTM)	400.99%	122.73%

Valuation

Price-to-Earnings Ratio (TTM)

IRM

728.24

Specialized REITs Industry

Max: 119.95
Q3: 64.19
Median: 27.78
Q1: 23.88
Min: 5.25

The P/E Ratio is often not the primary metric for valuation in the Specialized REITs industry.

MAA

28.62

Residential REITs Industry

Max: 76.72
Q3: 44.45
Median: 28.89
Q1: 22.94
Min: 9.90

The P/E Ratio is often not the primary metric for valuation in the Residential REITs industry.

IRM vs. MAA: A comparison of their Price-to-Earnings Ratio (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Price-to-Sales Ratio (TTM)

IRM

4.67

Specialized REITs Industry

Max: 10.35
Q3: 8.84
Median: 8.28
Q1: 5.39
Min: 1.68

In the lower quartile for the Specialized REITs industry, IRM’s P/S Ratio of 4.67 indicates its revenue is valued more conservatively than most of its peers. This could present a compelling opportunity if the market has overlooked its sales-generating capabilities.

MAA

7.44

Residential REITs Industry

Max: 13.08
Q3: 9.23
Median: 7.38
Q1: 6.12
Min: 5.65

MAA’s P/S Ratio of 7.44 aligns with the market consensus for the Residential REITs industry. This suggests its valuation, based on sales, is seen as standard and is on par with its competitors.

IRM vs. MAA: A comparison of their Price-to-Sales Ratio (TTM) against their respective Specialized REITs and Residential REITs industry benchmarks.

Price-to-Book Ratio (MRQ)

IRM

1,254.25

Specialized REITs Industry

Max: 13.73
Q3: 7.48
Median: 2.56
Q1: 1.70
Min: 0.71

At 1,254.25, IRM’s P/B Ratio is at an extreme premium to the Specialized REITs industry. This signifies that the market’s valuation is heavily reliant on future potential rather than its current net asset value, which can be a high-risk proposition.

MAA

2.93

Residential REITs Industry

Max: 4.07
Q3: 2.62
Median: 2.08
Q1: 1.46
Min: 0.68

MAA’s P/B Ratio of 2.93 is in the upper tier for the Residential REITs industry. This indicates that investors are paying a premium relative to the company’s net assets, a valuation that hinges on its ability to generate superior profits.

IRM vs. MAA: A comparison of their Price-to-Book Ratio (MRQ) against their respective Specialized REITs and Residential REITs industry benchmarks.

Valuation at a Glance

Symbol	IRM	MAA
Price-to-Earnings Ratio (TTM)	728.24	28.62
Price-to-Sales Ratio (TTM)	4.67	7.44
Price-to-Book Ratio (MRQ)	1,254.25	2.93
Price-to-Free Cash Flow Ratio (TTM)	429.07	69.77