The series only trails 'Homeland' as most watched among the network's drama roster.

Showtime cannot get enough of Billions.

The drama has been renewed for a fourth season at the network, ahead of a time-slot shift in May.

Billions has been a strong performer for Showtime since it premiered in 2016, trailing only behind Homeland among the pay cabler's most watched dramas, with a weekly audience of 4.5 million all told. It will return to a schedule and stable drama roster that also includes previously renewed Homeland and The Chi, as well as upcoming seasons of Ray Donovan and The Affair.

Produced by Showtime, Billions counts Brian Koppelman and David Levien as its showrunners, who created the series with Andrew Ross Sorkin. It stars Paul Giamatti, Damian Lewis, Maggie Siff and Malin Akerman.

"Billions continues to build its audience as it explores the heights of power and wealth even as it plumbs the depths of the human psyche," Showtime Networks programming president Gary Levine said Thursday in a statement. "Brian and David are gifted, propulsive storytellers, and we can't wait to see where they and their extraordinary cast will take us in season four."

Billions will shift time slots on Sunday, May 6, once the current season of Homeland wraps. It will air at 9 p.m. ET/PT.