Lyft filed an update to its IPO prospectus on Monday, targeting a $21 billion-$23 billion valuation when shares price as early next week. Executives and bankers will begin the company's roadshow this week with stops in Los Angeles, San Francisco, New York, Baltimore, Chicago and more. The company is expected to pitch its singular ride-hailing focus to investors, as opposed to Uber's multi-pronged bet on everything from self-driving cars to food delivery. Lyft is going full-steam-ahead on its initial public offering.