RTX Corporation (RTX) is an aerospace and defense company based in Arlington, Virginia. It provides systems and services for commercial, military, and government customers worldwide. The company has a market capitalization of $241.9 billion and operates through Collins Aerospace (Collins), Pratt & Whitney, and Raytheon segments.
Companies with a market cap of $200 billion or more are typically referred to as "mega-cap stocks." RTX firmly belongs in that category. The company's competitive advantage comes from its scale, technological expertise, and deep relationships with major customers such as Boeing, Airbus, the U.S. Department of Defense, and allied governments.