[SpaceX Has 'Dropped' a Tesla] According to Golden Finance, as of the close on Monday, July 28, SpaceX's stock price recorded its 13th decline in the past 16 trading days, closing at a post-listing low of $113.50. Since reaching a high of $225.64 in June, SpaceX's market value has evaporated by more than $1.2 trillion, a figure almost exactly equal to the current market value of Elon Musk's other company, Tesla, which has just fallen to its lowest point in nearly a year.