Warren Buffett’s Berkshire Hathaway is secretly building a substantial position, estimated at nearly $5 billion, sparking widespread speculation. CNBC prompted AI chatbots like ChatGPT, Google Gemini, and Microsoft Copilot to identify the mystery stock using Berkshire’s filings. ChatGPT suggested GE Aerospace, while Microsoft Copilot surprisingly picked Visa. Post navigation ‘Historic first’: Tricolour hoisted at Seattle’s iconic 605-feet-tall Space Needle; watch “I Deserve a Chance”: Nazem Kadri fires back after Hockey Canada camp snub
