Key TakeawaysLyft used its first investor day Thursday to predict its annual gross bookings will increase 15% per year through 2027.The ridesharing firm also gave guidance on future adjusted EBITDA margin and free cash flow conversion.Lyft also expects a big jump in how much it takes in for advertising on its app, in-car tablets, and top-of-car screens. Lyft (LYFT) shares gained Thursday as the ridesharing company gave an optimistic long-term outlook at its first investor day. The company said it expects gr ...