SpaceX (SPCX) stock trades like a monopoly. A $1.75 trillion valuation. Over 100x trailing revenue. Numbers like that only make sense if the market believes SpaceX has no real competition for years to come. However, investors shouldn't count on that lasting forever. SpaceX is a truly long-horizon stock, and that cuts both ways: it also means smaller, distant competitors deserve more credence than their current market share suggests. There are few credible challengers to SpaceX today. Jeff Bezos'