The past decade has been a testing time for the Russian tycoon’s love affair with London. The worst relations with the West since the Cold War, economic sanctions on Russia’s biggest companies and an oil-price rout that sank the rouble to record depths forced Russian companies and investors to migrate elsewhere.
An index of London-listed Russian stocks has fallen 42 percent over the past decade. There have been several de-listings. And in 2010, billionaire Oleg Deripaska snubbed London by listing his aluminium giant Rusal in Paris and Hong Kong.
