Iron Mountain Inc vs Merck & Co., Inc. — how do they compare? Iron Mountain Inc trades at $122.41 (market cap $36.19B), while Merck & Co., Inc. trades at $129.71 (market cap $323.00B). The key difference: Merck & Co., Inc. is far larger — about 8.9× 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.
| IRM | MRK | |
|---|---|---|
Market Cap | $36.19B | $323.00B |
Sector | Real Estate | Health |
52-Week High | $133.06 | $131.84 |
52-Week Low | $78.86 | $77.60 |
Enterprise Value | $55.60B | $369.77B |
Dividend Yield | 2.84% | 2.6% |
Signals from Pluang's Aura AI — not financial advice
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.
Merck (MRK) trades at $130.90, up 1.81% on the day, with a bullish technical outlook and strong institutional support. Recent earnings beats in Q4 2025 and Q1-Q2 2026, alongside a 28.07% net income margin in 2025, highlight operational strength. The acquisition of Terns Pharmaceuticals aims to bolster its oncology pipeline, though a high P/E of 104.74 signals premium valuation. Cash flow remains positive at $1.37B in 2025, but investing outflows have increased.
The stock offers growth potential from pipeline expansion and analyst consensus targeting $140.36, but risks include elevated debt-to-asset ratios (36.06% in 2025) and competitive pressures. Investors should weigh robust profitability against valuation concerns and macroeconomic headwinds affecting the pharma sector.
Trailing returns across standard periods
Latest headlines on both assets
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 →Merck makes pharmaceutical products to treat several conditions in a number of therapeutic areas, including cardiometabolic disease, cancer, and infections. Within cancer, the firm's immuno-oncology platform is growing as a major contributor to overall sales. The company also has a substantial vaccine business, with treatments to prevent hepatitis B and pediatric diseases as well as HPV and shingles. Additionally, Merck sells animal health-related drugs. From a geographical perspective, just under half of the firm's sales are generated in the United States.
Read more on MRK →