Carvana is surging more than 30% after striking a new debt restructuring deal despite remaining deeply unprofitable. It's part of a host of pandemic high-flyers that investors left for dead but are now rebounding including Robinhood, Coinbase, Peloton, Affirm, and OpenDoor – all with different business models but characterized by weak financials and high valuations. Plus, Apple is reportedly developing its own AI tools, including a large language model and an internal chatbot that engineers have dubbed “Apple GPT.”