Aurora Mobile is trading 5.1% up at $5.52 today, extending a multi-day rally. - The surge follows the company's announcement that its AI-first EngageLab platform is partnering with 3D printer brand Snapmaker to enhance global user reach. - This company-specific development provides a fresh catalyst for the stock's continued upward momentum. - Broader U.S. indices remain mixed and cautious ahead of the upcoming Federal Reserve meeting.