Tesla laid out an unprecedented plan to go private at $420 per share on Wednesday. And according to Business Insider, it sent Wall Street into a tizzy. The announcement sent the stock soaring by 10% and burned short sellers in the process. While Wall Street analysts generally acknowledge the toll that's been taken on the company for being public, they also recognize that Tesla needs access to capital that public markets can provide, and question the valuation Musk touted Tuesday.