Meta Platforms

Meta's market cap of ~$1.7 trillion reflects one of the most dramatic corporate comebacks in stock market history, as the company recovered from a $700 billion value wipeout in 2022. Its family of apps — Facebook, Instagram, WhatsApp, and Threads — reaches over 3.3 billion daily active users, and its AI-powered advertising system has driven advertiser return-on-investment to record highs. Meta's open-source Llama models have been downloaded over 600 million times, establishing the company as a dominant force in enterprise AI.