Almost everyone in the West upon reading their financial papers knew Warren Buffett had invested 5 billion dollars in Goldman Sachs. Many people took this as a signal of a bottom, or at the very least of a great value in stocks that were down, but not out. Russian billionaire Mikhail Prokhorov is taking a 50% stake in Russian giant investment bank Renaissance Capital. This is a development that could have even more meaning to RecCap than Buffett’s investment in Goldman.