Lopez-Lira has been experimenting with ChatGPT, DeepSeek and Grok to see if AI can be used to pick stocks ... on a news story is good or bad for a stock? What he found surprised him.

Grok has proved popular with X users. But a string of bizarre blunders has threatened to turn it into a punch line. Frustrated by what he saw as the “political correctness” of ChatGPT, Elon ...

An assistant professor of finance at the University of Florida, Alejandro Lopez-Lira, has spent the past few years trying to ...