SpaceX's stock could jump 43% — if the company is able to accomplish this engineering feat

Whether a SpaceX investment pays off 'rests almost entirely' on the company's ability to address a 'massive' bottleneck, according to a newly bullish analyst who sees room for the stock to rise 43%. Pivotal Research Group analyst Jeffrey Wlodarczak on Tuesday said making SpaceX's Starship rocket fully reusable is key to whether buying the stock SPCX makes sense at levels that currently have given the company a $2 trillion valuation.