CNBC reported Tuesday that Musk is discussing a merger between Tesla and SpaceX that would tie his tech empire closer together and instantly create the world’s fifth-largest corporate bitcoin treasury, worth $3.3 billion.

With SpaceX headed for the public markets next month, industry experts and people close to Elon Musk are speculating about a potential tie-up with Tesla.

Wall Street has speculated whether the world’s richest person will consider a tie-up for his two most valuable companies.