A New York federal judge has given preliminary approval to a $280 million settlement proposed by JPMorgan Chase to investors who claimed they were misled into buying $36.8 billion of non-agency MBS, ending a long-running, consolidated class-action suit. U.S. District Judge Pamela K. Chen granted initial approval late last week to the settlement with investors led by the Public Employees’ Retirement System of Mississippi. The Mississippi pension plan sued...