On May 7, the American Federation of Teachers, a prominent public-sector union in the United States, dispatched a letter to the U.S. Securities and Exchange Commission (SEC), urging a meticulous review of SpaceX's planned initial public offering (IPO). The union contends that SpaceX's staggering valuation of around $2 trillion is "at odds with financial rationality." SpaceX aims to secure $75 billion based on this valuation, a feat that, if accomplished, would crown it as the largest IPO ever witnessed. Yet, experts highlight a stark discrepancy between SpaceX's revenue and its lofty valuation, suggesting that the high valuation is predominantly predicated on Musk's visionary outlook for the future. The union's president lambasted SpaceX for hastily entering the market with a valuation that defies conventional financial wisdom. The union harbors concerns that, should SpaceX proceed with going public, its members' pension funds could be exposed to substantial operational risks, given that many of SpaceX's ambitious goals necessitate prolonged investment periods and may not materialize. Furthermore, the union has appealed to the SEC to scrutinize the matter of "involuntary investment" stemming from alterations to index provider regulations.