LMT vs MELI Comparison

Lockheed Martin is the world's largest defense contractor and has dominated the Western market for high-end fighter aircraft since it won the F-35 Joint Strike Fighter program in 2001. Aeronautics is Lockheed's largest segment, which derives upward of two-thirds of its revenue from the F-35. Lockheed's remaining segments are rotary and mission systems, mainly encompassing the Sikorsky helicopter business; missiles and fire control, which creates missiles and missile defense systems; and space systems, which produces satellites and receives equity income from the United Launch Alliance joint venture.

MercadoLibre is the largest e-commerce marketplace in Latin America, with more than 120 million unique active buyers and 1 million active sellers at the end of 2025. The company is roughly split between its e-commerce business, which includes its fulfillment and advertising services, and its fintech segment, which comprises its rapidly expanding payment and digital wallet platform (Mercado Pago) and its lending business (Mercado Credito). While the company operates in 18 countries, its primary markets are Brazil, Argentina, and Mexico, which account for more than 95% of its revenue.