Iron Mountain has grown revenue 11% a year over three years and 11% a year over five, with earnings per share compounding at −36%. Revenue growth, 3-year annual rate: +11% (REIT - Specialty median +5.6%). Revenue growth, 5-year rate: +11%, growth has slowed since the five-year average. Earnings per share, 3-year rate: −36%, earnings lagged revenue: the growth is costing something. Years of annual history on file: 18, FY2008 to FY2025, as filed.

IRMIron Mountain

Real Estate

$114.58+19% 1Y

$114.58

$77.6952 weeks$133.06

Is it growing?

Excellent

Growing: revenue growing +17% year on year, earnings up +900% year on year, and operating margin widening (+2.4 points).

3 good

Revenue trend+17% in a year

Trailing-twelve-month revenue vs a year earlier, from the company's own filings. Five-year pace: +12% a year.

Earnings trend+900% in a year

Trailing-twelve-month earnings per share against a year earlier. Growing faster than revenue, so margins or the share count are helping.

Margin direction+2.4 points operating

Trailing-twelve-month operating margin, 18.7% now against 16.3% a year earlier.

All from SEC EDGAR, as of Jun 30, 2026.

Where this answer is blind. These are trailing numbers from the filings, not forecasts: an acquisition or a one-off year can flatter them, so check the quarters.

Is IRM growing?

Iron Mountain has grown revenue 11% a year over three years and 11% a year over five, with earnings per share compounding at −36%.

+11%

Revenue growth, 3-year annual rate · REIT - Specialty median +5.6% · steady growth, ahead of inflation · compounded from fiscal-year columns as filed

Revenue growth, 5-year rate: +11%
Revenue growth, 5-year rate · +11% over three · growth has slowed since the five-year average
Earnings per share, 3-year rate: −36%
Earnings per share, 3-year rate · revenue +11% · earnings lagged revenue: the growth is costing something
Years of annual history on file: 18
Years of annual history on file · FY2008 to FY2025, as filed