Aon PLC vs Iron Mountain Inc — how do they compare? Aon PLC trades at $356.48 (market cap $75.72B), while Iron Mountain Inc trades at $122.75 (market cap $36.19B). The key difference: Aon PLC is far larger — about 2.1× Iron Mountain Inc's market cap, and Iron Mountain Inc pays the higher dividend (2.84%). Which is the better fit depends on your goals.
| AON | IRM | |
|---|---|---|
Market Cap | $75.72B | $36.19B |
Sector | Financials | Real Estate |
52-Week High | $381.26 | $133.06 |
52-Week Low | $308.22 | $78.86 |
Enterprise Value | $90.33B | $55.60B |
Dividend Yield | 0.92% | 2.84% |
Signals from Pluang's Aura AI — not financial advice
AON trades at $358.3, down 0.68% on the day, with a neutral technical signal. The company reported strong Q2 2026 earnings, beating EPS estimates with $3.81 versus $3.8 expected, driven by 5% organic revenue growth. Valuation metrics include a P/E of 19.75 and P/S of 4.39, while profitability remains robust with a net income margin of 22.27% and ROE of 44.88%. Recent news highlights institutional buying and a new executive appointment.
The outlook is positive with a consensus price target of $410, implying 14% upside, supported by earnings momentum and solid cash flow. Risks include premium valuation concerns and modest organic growth. Analyst sentiment is balanced with 47% buy ratings, but high debt levels and competitive pressures warrant caution for investors.
Iron Mountain (IRM) trades at $121.15, down 0.66% on the day, amid a bearish technical signal. The company reported strong Q2 2026 results with revenue up 19% year-over-year to $2.03 billion, beating estimates, and has a consensus analyst price target of $141.50. However, high debt levels and a negative shareholder equity position present fundamental concerns.
Outlook is mixed: robust data center and digital growth support upside, but elevated valuation ratios and rising debt-to-asset ratios pose risks. Analyst sentiment is predominantly buy-rated (65%), yet technical indicators suggest near-term caution. Investors should weigh strong operational performance against financial leverage and market volatility.
Trailing returns across standard periods
Latest headlines on both assets
Aon is a leading global provider of insurance and reinsurance brokerage and human resource solutions. Its operations are tilted toward its brokerage operations. Headquartered in London, Aon has about 50,000 employees and operations in 120 countries around the world.
Read more on AON →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 →