Pinterest shares plunged as much as 20% after hours Thursday as CEO Bill Ready said the company “absorbed an exogenous shock this year related to tariffs”…

Samuel Boivin | Nurphoto | Getty ImagesCloudflare’s stock rallied 10% Wednesday after the company beat Wall Street’s fourth-quarter estimates and issued upbeat guidance as artificial intelligence…

Amazon shares plunged 8% Friday after the company posted mixed fourth-quarter earnings and boosted its 2026 spending forecast to $200 billion. Here’s how the company did,…