Extinction, most likely: In spite of Dave Portnoy's announcement that he did buy back all of his shares from PENN Entertainment (for $0), what happens to Barstool Sportsbook has yet to be determined. Considering there's most likely a non-compete involved, and any future sale of Barstool Sports sends 50% of the revenue in PENN's direction, it's a safe bet that Barstool Sportsbook will go extinct.