Veteran short seller Jim Chanos has called the SpaceX IPO a "hopes and dreams IPO," pointing to its revenues of just under $20 billion as hard to justify its high valuation.

A successful stock market debut for SpaceX is viewed as a positive signal for OpenAI and Anthropic to proceed with their own IPOs.

If the over-allotment option is fully exercised, the total value of the SpaceX IPO deal would rise to $86 billion.

Critics of Elon Musk's corporate structure point to the convoluted cross-ownership and business dealings between companies like X, Tesla, SpaceX, and Boring Company as making decision-making opaque.