Iron Mountain vs Lamar Advertising
Iron Mountain reported revenue of $6.9 billion in fiscal 2025, 3.0 times Lamar Advertising's $2.3 billion in fiscal 2025. Iron Mountain's revenue grew 12.2% in its latest year, and Lamar Advertising's grew 2.7%. Iron Mountain had an operating margin of 16.9%, against 34.2% at Lamar Advertising. Free cash flow was −$932 million at Iron Mountain and $683 million at Lamar Advertising.
Side by side
| Iron Mountain | Lamar Advertising | |
|---|---|---|
| Latest fiscal year | FY2025, Dec 31, 2025 | FY2025, Dec 31, 2025 |
| Revenue | $6.9B | $2.3B |
| Revenue growth | 12.2% | 2.7% |
| Revenue growth a year, last 5 years | 10.7% | 7.6% |
| Gross margin | — | 67.0% |
| Operating margin | 16.9% | 34.2% |
| Net margin | 2.2% | 25.9% |
| Free cash flow | −$932M | $683M |
| Free cash flow margin | −13.5% | 30.1% |
| Return on capital | 5.6% | 17.3% |
| Net debt to EBITDA | 7.7x | 3.1x |
| Dividends and buybacks | $919M | $814M |
| Change in diluted share count | 0.5% | −0.9% |
| Last close | $113.08 | $157.01 |
| P/E at the last close | 80.8× | 28.7× |
| Insider trades, last 12 months | bought $2,954, sold $117.6 million | sold $3.7 million |
| Piotroski F-score | 5 of 8 | 8 of 9 |
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.
Ten years
Revenue
US$ billions, fiscal years
Iron MountainLamar Advertising
Operating margin
Percent of revenue
Iron MountainLamar Advertising
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
Iron MountainLamar Advertising
Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Iron Mountain and Lamar Advertising pages.