Billions of US dollars in cash are at risk of being trapped, stock funds have plunged and capital controls are choking off money flows. Russia has all the hallmarks of an uninvestable market for global investors. Russia-focused equity funds have tumbled 23 percent on average in the past week, data compiled by Bloomberg showed. Bonds have plummeted as default risks intensified and trading the ruble has become a Herculean task, with brokers stepping back from dealing with the currency. “The calamity of Russia’s war in Ukraine has put an end to international financial investing in Russia,” said Christopher Granville, managing director for