Black "projects that those deliveries, along with service sales related to the existing fleet of Tesla vehicles, would earn the company $140 billion, or about $100 a share. (He projects about 1.4 billion Tesla shares outstanding by the end of the decade, up from roughly1 billion today.)" reports Al Root for Barron's. "He puts a 30 price-to-earnings multiple to earnings of $100 a share, yielding a $3,000 price target. With 1.4 billion shares outstanding, that means Tesla's market capitalization would be north of $4 trillion."