CNBC's Jim Cramer said one of the biggest risks facing the SpaceX IPO is speculators who may rush to sell shares shortly after the stock begins trading.

SpaceX IPO: At roughly 110 times trailing sales, Elon Musk-led company's valuation assumes years of rapid growth, raising the stakes for investors if the company falls short of…

Analyst says IPO looks ‘like a way to lure unsuspecting investors into paying off’ debt, ‘fund an increasingly costly AI race and lock in a trillion-dollar pay day’