Correction, the SpaceX IPO is what briefly made him a trillionaire on paper. And yeah, that stock is in free fall too. Likely to be moreso when the locks come off for the people who got free shares as employees. If you look at the stock, and the way he set it up (his 1 share is worth 10 of everyone elses in voting power, as well as other weirdness) it's not a long term stock. No one but a moron or a Musk Stan would keep it.