With a market cap of $130.1 billion, Lockheed Martin Corporation (LMT) is a global aerospace and defense technology giant that develops advanced military aircraft, missile and air-defense systems, helicopters, naval and undersea technologies, radar and command systems, and space-based platforms. Headquartered in Bethesda, Maryland, the company primarily serves the U.S. government and allied nations, with defense and national-security programs at the core of its business.
Lockheed Martin has been flying above the broader market. LMT stock has gained 26% over the past 52 weeks, while the broader S&P 500 Index ($SPX) has rallied 20.5%. The defense giant has maintained that edge in 2026, returning 16.5% on a YTD basis, compared to SPX’s 12.1% rise.