Mr Cooper Group Inc fka COOP

[novascotiaSTS]

Mr Cooper is simply the new name for WMIH after the merger - this is not some speculation but a fact just reported again in the latest 10-K:

Mr. Cooper, which was previously known as WMIH Corp. (“WMIH”), is a corporation duly organized and existing under the laws of the state of Delaware since May 11, 2015. On July 31, 2018, Wand Merger Corporation, a wholly owned subsidiary of WMIH (“Merger Sub”), merged with and into Nationstar Mortgage Holdings Inc. (“Nationstar”), with Nationstar continuing as a wholly owned subsidiary of WMIH (the “Merger”).