Traders value SpaceX at approximately $2 trillion, making Elon Musk's half-ownership worth nearly a trillion dollars.

Elon Musk's trillionaire status is based on his ownership of real assets like Twitter, Tesla, and about half of SpaceX, rather than cash in a bank.

SpaceX is targeting to raise $75 billion at a $1.75 trillion valuation, aiming to be the largest IPO ever in terms of capital raised.

SpaceX has $16 billion in revenue with $8 billion in profits and is projected to IPO at 90 to 110 times revenues.

Elon Musk became the world's first trillionaire this week.

Scott Galloway predicts that when SpaceX goes public, investor money will shift from Tesla to SpaceX, causing Tesla's valuation to drop to about a fifth of its current level.