Iron Mountain Inc vs White Mountains Insurance Group Ltd. Common Stock — how do they compare? Iron Mountain Inc trades at $111.8 (market cap $33.00B), while White Mountains Insurance Group Ltd. Common Stock trades at $2,090 (market cap $5.01B). The key difference: Iron Mountain Inc is far larger — about 6.6× White Mountains Insurance Group Ltd. Common Stock's market cap, and Iron Mountain Inc pays the higher dividend (3.12%). Which is the better fit depends on your goals.
| IRM | WTM | |
|---|---|---|
Market Cap | $33.00B | $5.01B |
Volume | 1,075,916 | 19,324 |
Sector | Real Estate | Financials |
52-Week High | $133.06 | $2.32K |
52-Week Low | $78.86 | $1.85K |
Typical Hold Time | 80 Days | — |
Enterprise Value | $52.41B | $5.84B |
Dividend Yield | 3.12% | 0.05% |
Signals from Pluang's Aura AI — not financial advice
Iron Mountain (IRM) trades at $114.60, down 0.43% on the day, with a neutral technical signal. The stock shows strong analyst support with a 66.7% buy rating and a consensus price target of $142.75, implying significant upside. Recent earnings have consistently beaten expectations, and the company is expanding its data center pipeline and digital solutions, as highlighted in recent news. However, high debt levels and a declining net income margin present fundamental concerns.
The outlook is mixed: growth in data centers and digital services offers opportunity, but elevated valuation ratios and leverage pose risks. Investor sentiment is cautiously optimistic, driven by strategic initiatives, though execution and macroeconomic factors remain key watchpoints for stock performance.
White Mountains Insurance Group (WTM) trades at $2,093.13, up 0.31% with neutral technical signals. The stock shows strong fundamentals with a P/E of 4.8 and ROE of 21.9%, though recent earnings were mixed with Q2 2026 beating estimates while Q1 missed. Book value per share reached $2,258 as of June 2026, up 4% quarterly. Recent product launches and board additions signal strategic growth initiatives.
WTM presents value investment appeal with attractive valuation multiples and solid profitability, but faces execution risks from volatile quarterly earnings and negative cash flow trends. Analyst consensus remains neutral with 100% hold ratings, suggesting cautious optimism pending clearer earnings consistency and cash flow improvement.
Trailing returns across standard periods
Iron Mountain Inc is a record management services provider. The firm is organized as a REIT. Most of its revenue comes from its storage business, with the rest coming from value-added services. The firm primarily caters to enterprise clients in developed markets. Its business segments include Global RIM Business
Read more on IRM →White Mountains Insurance Group Ltd. is a Bermuda-based holding company that owns and builds insurance and financial services businesses. Its operating segments include Ark, a specialty insurance and reinsurance underwriter; HG Global, which reinsures municipal bond insurer Build America Mutual; and Kudu Investment Management, which provides capital to boutique asset managers.
Read more on WTM →