Musk: Tesla and SpaceX stocks are almost all of my "wealth."

Musk posted on social media, "My Tesla and SpaceX stocks are almost all of my 'wealth'; their value will only increase as these companies produce and provide more useful products and services.

This means my 'wealth' will only grow as I produce more products and services for the public. Additionally, all other shareholders of Tesla and SpaceX, including employees, can share in the benefits of stock appreciation."