Morgan Stanley stands to benefit as SpaceX's valuation reaches a record high of about $350 billion, pushing Elon Musk's own net worth to new heights. Morgan Stanley has opened a special loan program to SpaceX employees who want to cash out as SpaceX's stock soars but don't want to lose their equity, according to people familiar with the matter. Some of the people said employees need at least $500,000 worth of vested SpaceX stock to participate.