Meta Platforms

Meta's roughly $1.9 trillion market cap marks one of the most remarkable turnarounds in stock market history, recovering from a roughly $700 billion value wipeout in 2022. Its family of apps — Facebook, Instagram, WhatsApp, and Threads — reaches more than 3 billion daily active users. Meta's open-source Llama models, downloaded hundreds of millions of times, have also established the company as a top contender in enterprise AI.