Traders on prediction market platform Kalshi see only an 18% chance the Elon Musk-led company gets to Earth's neighbor by 2030.

Today could be one of the biggest days in stock market history. After 24 years of anticipation, the SpaceX IPO finally debuted on Friday.

SpaceX's bold Mars vision faces scientific doubts. Experts highlight engineering challenges and human biology unknowns. Colonizing Mars presents immense hurdles. Musk's ambitious…

Speaking shortly before the Nasdaq opening bell, founder Elon Musk said: “SpaceX wants to be able to take you to the moon, take you to Mars and ultimately beyond.”

After its Nasdaq debut on Friday, SpaceX was the sixth most-valuable U.S. company, despite being a fraction the size by revenue of tech's megacaps.

Traders on prediction market platform Kalshi see only an 18% chance the Elon Musk-led company gets to Earth's neighbor by 2030.

Kalshi prediction markets price SpaceX human Mars launch odds at just 18-21% before 2030, reflecting deep trader skepticism about Musk's interplanetary