Iron Mountain (Delaware)Common Stock REIT (IRM) vs Lamar Advertising (LAMR)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Lamar Advertising (LAMR) has outperformed Iron Mountain (Delaware)Common Stock REIT (IRM) over the past year, gaining 17.9% versus a gain of 9.3%. Over five years, IRM leads with a +157.9% price change compared with +20.2% for LAMR. Iron Mountain (Delaware)Common Stock REIT is the larger company by market cap ($34.46 billion vs $14.55 billion), about 2.4 times the size.
On valuation, Lamar Advertising trades at a lower forward P/E (22.1x vs 42.4x for Iron Mountain (Delaware)Common Stock REIT). Lamar Advertising offers the higher dividend yield (4.40% vs 2.92%). Lamar Advertising converts more of its revenue into profit, with a net margin of 25.9% versus 2.2%.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | IRM | LAMR |
|---|---|---|
| Share price | $115.75 | $143.24 |
| Market cap | $34.46B | $14.55B |
| 1-day change | -0.64% | -1.04% |
| YTD return | +39.54% | +13.16% |
| 1-year return | +9.31% | +17.92% |
| 5-year return | +157.91% | +20.24% |
| P/E ratio (TTM) | 83.27 | 26.43 |
| Forward P/E | 42.45 | 22.10 |
| EPS (TTM) | $1.39 | $5.42 |
| Dividend yield | 2.92% | 4.40% |
| Annual dividend | $3.38 | $6.30 |
| Revenue (latest FY) | $6.90B | $2.27B |
| Revenue growth (YoY) | +12.23% | +2.68% |
| Net income (latest FY) | $152.25M | $587.15M |
| Gross margin | 55.38% | 67.04% |
| Operating margin | 16.86% | 34.16% |
| Net margin | 2.21% | 25.91% |
| 52-week high | $134.68 | $166.33 |
| 52-week low | $77.77 | $114.45 |
| Distance from 52-week high | -14.06% | -13.88% |
| Analyst consensus | buy | hold |
| Avg. price target upside | +25.35% | +13.24% |
| Average volume | 1.74M | 580.78K |
| Shares outstanding | 297.70M | 87.13M |
| Employees | 29,400 | 3,500 |
| Sector | Real Estate | Real Estate |
| Industry | Real Estate Investment Trusts | Real Estate Investment Trusts |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- Iron Mountain (Delaware)Common Stock REIT is about 2.4 times larger than Lamar Advertising by market value ($34.46B vs $14.55B).
- Iron Mountain (Delaware)Common Stock REIT trades at a higher earnings multiple (83.3x vs 26.4x trailing P/E).
- Lamar Advertising offers a meaningfully higher dividend yield (4.40% vs 2.92%).
- Lamar Advertising is more profitable, keeping 25.9 cents of every revenue dollar as net income versus 2.2 cents for Iron Mountain (Delaware)Common Stock REIT.
- Iron Mountain (Delaware)Common Stock REIT grew revenue faster in its latest fiscal year (+12.23% vs +2.68%).
About Iron Mountain (Delaware)Common Stock REIT
IRM stock →Iron Mountain Incorporated is trusted by more than 240,000 customers in 61 countries, including approximately 95% of the Fortune 1000, to help unlock value and intelligence from their assets through services that transcend the physical and digital worlds. Our broad range of solutions address their information management, digital transformation, information security, data center and asset lifecycle management needs.
Real Estate · Real Estate Investment Trusts · 29,400 employees
About Lamar Advertising
LAMR stock →Lamar Advertising Company is one of the largest outdoor advertising companies in North America, with over 362,000 displays across the United States and Canada. Lamar offers advertisers a variety of billboards, interstate logo, transit and airport advertising formats, helping both local businesses and national brands reach broad audiences every day.
Real Estate · Real Estate Investment Trusts · 3,500 employees
IRM vs LAMR FAQ
Which is bigger, Iron Mountain (Delaware)Common Stock REIT or Lamar Advertising?
Iron Mountain (Delaware)Common Stock REIT (IRM) is larger, with a market capitalization of $34.46B compared with $14.55B for Lamar Advertising (LAMR).
Which stock has performed better over the past year, IRM or LAMR?
LAMR returned +17.92% over the past 12 months, compared with +9.31% for IRM (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, IRM or LAMR?
LAMR has the lower trailing P/E at 26.4, versus 83.3 for IRM. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Which pays a higher dividend, Iron Mountain (Delaware)Common Stock REIT or Lamar Advertising?
Lamar Advertising has the higher yield at 4.40%, compared with 2.92% for Iron Mountain (Delaware)Common Stock REIT.
Are Iron Mountain (Delaware)Common Stock REIT and Lamar Advertising in the same industry?
Yes. Both are classified in the Real Estate Investment Trusts industry within the Real Estate sector.