
Boston, Massachusetts-based American Tower Corporation (AMT) is a leading independent owner, operator, and developer of multitenant communications real estate. With a market cap of approximately $84.8 billion, American Tower’s operations span the Americas, Europe, Africa, and the Indo-Pacific.
Companies worth $10 billion or more are generally described as "large-cap stocks." American Tower fits this bill perfectly. Given the company’s extensive operations and stronghold in the real estate space, its valuation above this mark is unsurprising.