Reuters reported that JPMorgan Chase shareholders won court permission to pursue their securities fraud lawsuit against the bank over the “London Whale” trading scandal, which caused a $6.2 billion loss, as a class action.

Reuters said a U.S. District Court Judge in Manhattan rejected the largest U.S. bank’s arguments against class action certification, which often results in higher recoveries because plaintiffs can sue as a group rather than individually.

Reuters noted that JPMorgan paid more than $1 billion and admitted wrongdoing to settle U.S. and British probes into “London Whale” losses.