NEW YORK — Warner Bros. Discovery will split into two public companies by next year, calving off its cable operations from its streaming service.

Warner Bros. Discovery said Monday that Streaming & Studios will include Warner Bros. Television, Warner Bros. Motion Picture Group, DC Studios, HBO, and HBO Max, as well as their film and television libraries.

The Global Networks company will include CNN, TNT Sports in the U.S., and Discovery, top free-to-air channels across Europe, and digital products such as the Discovery+ streaming service and Bleacher Report.

Shares jumped more than 9% before the market open.

Warner Bros. Discovery CEO David Zaslav will serve as CEO of Streaming & Studios. Gunnar Wiedenfels, chief financial officer of Warner Bros. Discovery, will serve as CEO of Global Networks. Both will continue in their current roles until the separation.

“By operating as two distinct and optimized companies in the future, we are empowering these iconic brands with the sharper focus and strategic flexibility they need to compete most effectively in today’s evolving media landscape,” Zaslav said in a statement.

The split is expected to be completed by the middle of next year. It still needs final approval from the Warner Bros. Discovery board.