American Tower Corporation (AMT) Stock Analysis & Winston Score

American Tower owns and operates cell towers and other wireless infrastructure around the world. Wireless carriers like AT&T, Verizon, and T-Mobile pay to attach their antennas to these towers so they can deliver phone calls and mobile data to their customers. The company is one of the largest owners of cell tower infrastructure on the planet, with roughly 220,000 sites across six continents. American Tower makes money by leasing space on its towers to multiple carriers at once, which means one tower can generate rent from several tenants simultaneously. Most of its revenue comes from the United States, but it has a large and growing presence in India, Africa, Europe, and Latin America. Its main competitive advantage is that building new towers is expensive and slow, so carriers generally prefer to rent existing ones. The key growth driver is rising global demand for mobile data, though rising interest rates are a notable risk because they increase borrowing costs and pressure the stock's valuation as a REIT.