Daniel Ek (born 21 February 1983) is a Swedish billionaire entrepreneur and technologist. Ek is known for being the co-founder and CEO of music streaming service Spotify.
Could be stock in Spotify, which is speculation, not corporate profit. The fact that they got 2.5 billion investment show people think it will make money, not that it's making money.
https://en.wikipedia.org/wiki/Daniel_Ek
When he was born he didn't have billions of dollars. Now he does. Pretty sure it came from Spotify.