David Ross loses bid to get out of jail earlier
Ross was originally sentenced, in the Wellington District Court, to 10 years and 10 months for the fraud he perpetrated through Ross Asset Management.
The court also ruled Ross must serve at least five years five months in prison. Earlier this month Ross appealed against his minimum non-parole term with his lawyer saying it should go down to just four years.
But Appeal Court justices Christine French, Jillian Mallon and Geoffrey Venning have dismissed that appeal.
The Financial Markets Authority and SFO - who took the case against Ross - said they welcomed the decision.
"We believe that the decision to uphold the original sentence reflects the seriousness of Ross's criminal offending and the significant harm that his behaviour has caused to investors," they said in a statement.
At the time of Ross's appeal the spokesman for Ross Asset Management Investors Group, Bruce Tichbon, expressed anger that victims could not join the appeal and argue for a longer sentence.
He said group members were angry at Ross' lawyer "having the cheek to appeal".
"Ross in many ways seems to get better treatment than his victims," he said.