Famed investor Jeremy Grantham has criticized the initial public offering (IPO) of SpaceX, describing it as "the craziest IPO in the history of man." This assessment comes from a series of articles published on various news outlets, including msn.com and AOL.com. [1] and [2] both report that Grantham is not keen on SpaceX's claims regarding asteroid mining, space tourism, or other speculative technologies.
In his interview with Morningstar, which was cited by [3], Grantham elaborates on why he believes the IPO of SpaceX will be remembered for all the wrong reasons. He suggests that while some might see these ventures as exciting and innovative, others may look back at them in 50 years with amusement or even derision.
Meanwhile, [4] provides a similar account but slightly alters Grantham's characterization of the IPO, referring to it simply as "the craziest IPO," without specifying that he considers it so for all the wrong reasons. Despite these slight differences in phrasing, all sources agree on Grantham's critical stance towards SpaceX’s ambitious plans.