Iron Mountain share price today

Iron Mountain Incorporated's share price was $118.91 at the close on 4 November 2026. It has been rising for 2 weeks. That is 2.9% above its average price over the last 200 trading days. In the last 52 weeks it traded between $80 and $132, and at that close it sat 74% of the way up from that low.

A share price tends to move through four phases: moving sideways (stage 1), rising (stage 2), stalling near a high (stage 3) and falling (stage 4). Today Iron Mountain Incorporated is in stage 2. The phase helps read everything below.

Over the past 13 weeks it has done worse than the S&P 500, and it has been behind for 15 weeks running.

Over the last 10 years the share price moved +198% while the S&P 500 moved +261%, so it is behind the index over that whole period. It was last ahead over 13 weeks in the week of 24 July 2026. The chart above shows the 13-week comparison for every week.

This page treats a rise as over when the price closes below its 200-day average on two Fridays in a row.

Iron Mountain Incorporated paid $3.38 per share over the last four reported quarters. The most recent declaration was $0.86 for Jun 2026. At today's price of $118.91 that is a yield of 2.84%, based on dividends already paid, not a forecast.

A dividend is cash paid out for each share. The 12-month total is the four most recent quarters added together.

Iron Mountain is on one of our US lists: S&P 500 companies.

Iron Mountain Incorporated earned $106 M of net profit in the Jun 2026 quarter. Full-year FY25 profit was $152 M. Over 4 years profit has grown −23.8% a year on average. That is 5.2% of the quarter's revenue. The same quarter a year earlier lost $43.3 M. 2 of the last 12 reported quarters were loss-making.

Net profit is what is left after every cost, interest and tax. Earnings per share, dividends and book value all grow from it.

For the full year, FY25 profit was $152 M (−17.1% on the year before).

Iron Mountain Incorporated reported $2.0 B of revenue in the Jun 2026 quarter, +18.5% on the same quarter a year earlier. That is the 12th quarter in a row with growth on the year before. Over 4 years it has grown 11.3% a year on average. The last full year, FY25, came in at $6.9 B.

Revenue is everything the company billed its customers in the period.

The last four reported quarters add to $7.6 B.

FY25 revenue was $6.9 B, +12.2% on the year before.

Recent pace: the last four quarters grew +17.3% on average, against 11.3% a year over the longer run, so this year is growing faster than its own long-run rate.

Is growth speeding up? Revenue over the last 12 months grew +17.4%, against +14.0% a year over the last 8 quarters (accelerating); profit over the last 12 months grew +867.3%, against +36.8% a year (accelerating).

Iron Mountain Incorporated's operating margin was 19.1% in the Jun 2026 quarter, 0.8 percentage points higher than the same quarter a year ago. Across 5 years it has been between 19.7% and 20.5%. The latest quarter is below every full year in that period.

Operating margin is what is left from every $100 of sales after the costs of running the business, before interest and tax. It shows pricing power and cost control.

Why: the operating margin move is clear, but the cost details behind it are not in our data, so we show the move without guessing the reason.

Over the last 3 years, 698% of Iron Mountain Incorporated's reported profit came in as cash from its operations, so the profit is backed by cash. In FY25 it brought in $1.3 B of operating cash against $152 M of profit.

The profit and loss account shows what was earned. The cash-flow statement shows the cash that actually came in. Comparing operating cash flow with profit is one of the best checks that a profit is real.

Cash-flow figures here are yearly, because quarterly cash statements are not published, so this section changes once a year.

Why: the cash figure is clear, but the day counts behind it are not in our data, so we show it without guessing the reason.

What to look at next: no single use of cash stands out. The next section checks both the cash tied up in daily operations and the spending on assets.

Iron Mountain Incorporated does not report the customer, stock and supplier day counts a cash cycle needs, so this section looks at its spending on assets instead. Nothing is estimated in place of the missing day counts, so no cash-cycle chart is drawn.

Working capital is the cash tied up between paying suppliers and getting paid. Debtor days: how long customers take to pay. Inventory days: how long stock sits. The cash cycle: the whole loop, in days of sales.

In short: neither the daily cycle nor new spending is soaking up the cash, so the picture is fairly clean.

Iron Mountain Incorporated's P/E is 84.8×, in the middle of its own history: higher than 43% of past readings. Its usual P/E (the middle reading) is 114.5×, over 4.6 years of weekly prices. This compares the share price with the company’s own past. It does not say what the business is worth.

P/E is the share price divided by a year's profit per share: how many dollars the market pays for each dollar of yearly profit.

Why the multiple is where it is: over the past year earnings per share moved −19.8% while the price moved +14.2%. The price did better than earnings, which pushed the multiple up within its own range.

Where the price move came from: over 3 years the price moved +24.4% a year; about +14.2% a year came from earnings growth and about +10.2 percentage points from the multiple (the market paying more). The split is approximate (price return minus earnings growth). It shows how much of the move came from the market paying a different multiple.

In short: the multiple is about average against its own past, so the earnings trend underneath matters more than the multiple.

Iron Mountain Incorporated's business is giving mixed signals. There is no clear direction across the growth lines; each line tells part of the story. This is based on 12 quarters of 3 measures, with some gaps.

Every business is somewhere on a path of getting better or worse, and this section names where. The last 12 quarters of growth in revenue, profit and earnings per share, plus the return the business earns on its capital, are read as lines. Getting worse: the lines are falling. Turning around: a low point has just formed and the last few quarters are rising from it. Getting better: the rise from the low has lasted. Growing steadily: steady growth with healthy returns. Slowing from a peak: still high, but slowing. When the lines disagree the result is mixed; too little history means no reading. CAGR (compound annual growth rate) is the steady yearly rate that would turn the starting value into the latest one. It is the fairest way to compare growth over different periods. If the 1-year figure is much bigger than the 10-year one, recent growth is running faster than the long-run trend. A dash means there is no figure for that period, or the starting year was a loss, where a growth rate means nothing.

Why it matters: when the lines disagree, each line above matters more than any single label.

The return-on-capital line is not shown: net worth is negative, so a return on capital means nothing. The balance sheet is in distress, and this reading uses the growth lines alone.

This reading has some gaps: at least one line is short, or the return line is not the quarterly series, so treat it with a little more caution.

Compound annual growth rate (%)

Compound annual growth rate over each period, %. Revenue, profit and EPS come from yearly figures; the stock price row is price growth over the same periods. A dash means no figure for that period, or the starting year was a loss.

Iron Mountain Incorporated earned a ROE of −24% in FY25. That is up from a low of −81% in FY24. Its return on capital used (ROIC) is 3.0 percentage points below its cost of capital, so growth here does not yet pay for the capital it uses.

Return on equity (ROE) is the profit the business earns on its shareholders’ money. We do not have the full capital split, so ROE is the longest history we can draw here.

It comes from a 2.2% net margin and 0.33× asset turnover (sales divided by assets).

Why the return is what it is (FY25): a 2.2% net margin × 0.33× asset turnover × −32.76× leverage (assets divided by equity) ≈ −23.8% on equity. The margin does its share; borrowing plays a small part, so this return is earned, not borrowed.

The key test, return on capital used minus the cost of capital: 5.3% − 8.3% = −3.0 percentage points. The 8.3% is an estimate of this company's own cost of capital. Read the sign and size of the gap, not the decimals. Negative: growth at these returns loses value until returns improve.

The 5.3% ROIC above is the latest reading, as reported. The yearly chart below shows FY23 at 6.3%, and the quarterly chart works out each 12-month window from the quarterly figures, so the readings differ by date, not by method.

Iron Mountain Incorporated's net worth is negative: it owes more than it owns, so a debt-to-equity ratio means nothing here. Year by year, that ratio went from 12.59 in FY21 to −29.54 in FY25. So the returns on this page come from the business, not from borrowed money.

Debt-to-equity shows how much of the business is paid for with borrowed money. Lower is safer, and the direction matters as much as the level.