| American Tower is a holding company. Through its subsidiaries, Co. is a real estate investment trust and an independent owner, operator and developer of multitenant communications real estate. Co.'s business is the leasing of space on communications sites to wireless service providers, radio and television broadcast companies, wireless data providers, government agencies and municipalities and tenants in a number of other industries. Co. also provides tower-related services in the U.S. These services include site application, zoning and permitting and structural analysis, which primarily support Co.'s site leasing business, including the addition of new tenants and equipment on its sites.
When researching a stock like American Tower, many investors are the most familiar with Fundamental Analysis — looking at a company's balance sheet, earnings, revenues, and what's happening in that company's underlying business. Investors who use Fundamental Analysis to identify good stocks to buy or sell can also benefit from AMT Technical Analysis to help find a good entry or exit point. Technical Analysis is blind to the fundamentals and looks only at the trading data for AMT stock — the real life supply and demand for the stock over time — and examines that data in different ways. One of those ways is to calculate a Simpe Moving Average ("SMA") by looking back a certain number of days. One of the most popular "longer look-backs" is the AMT 200 day moving average ("AMT 200 DMA"), while one of the most popular "shorter look-backs" is the AMT 50 day moving average ("AMT 50 DMA"). A chart showing both of these popular moving averages is shown on this page for American Tower.