The City of Montreal sold La Ronde to Six Flags, an American theme park chain, in a deal completed on May 4, 2001. It acquired all of the assets of the park for $20 million USD and has a long-term contract to lease the land from the city. Before the announcement of the Six Flags purchase, the city had considered offers from other bidders including Paramount Parks, Cedar Fair, and Parc Astérix. Since then, Six Flags has invested around $90 million in new rides and improvements, such as Le Vampire, Splash, Le Goliath and Ednör - L'Attaque as well as a new main entrance.