Oleg Deripaska, formerly Russia's richest man, has fallen to eighth place after losing $35bn during the credit crunch, while peer Mikhail Prokhorov has jumped to become the richest Russian.

Prokhorov was worth $14.1bn at the end of last year, $200m more than Chelsea soccer club owner Roman Abramovich, who retained the runner-up slot in the sixth-annual ranking by Finans, a Russian rival to Forbes.