Microsoft plunges, Meta rallies as investors demand AI payoffs

By Aditya Soni and Deborah Mary Sophia Jan 29 (Reuters) - Big Tech earnings so far this week have sent a clear warning: investors are willing to overlook soaring spending on artificial intelligence if it fuels strong growth, but are quick to punish companies that fall short. The contrast was clear in ​Thursday's market reaction to earnings from Microsoft and Meta, highlighting how dramatically the stakes have changed since the launch of ChatGPT started the AI boom more ‌than three years ago. Microsoft ...