Last week, a day after Tesla Inc shares dipped below $300, CEO Elon Musk tweeted a timeline for electric semi trucks and pickups. Traders jumped on the stock, and at least one research firm downgraded truck competitors.Argus analyst Bill Selesky told Benzinga the vehicle isn't really a “needle mover,” but its implications are."[I]t positions TSLA as a provider of vehicles that address the worldwide issue of environmental concern," Selesky said. “It tells the world that Tesla provides vehicles that run on batteries (environmentally-friendly) for both the consumer and the business person."Read More