While Nvidia's spectacular surge remains the biggest story in the technology industry, the AI chipmaker's performance on the market has been dwarfed this year by a digital advertising company with a specialty in gaming.AppLovin has soared 310% in 2024, beating every U.S. tech company with a market cap of at least $5 billion, according to FactSet data. Nvidia, which has led the artificial intelligence boom and become the world's second-most valuable public company, is up 173% this year.Founded 12 years ago, ...