The Economist used fundflow data provided by Morningstar to determine if investors put money into asset classes that had performed well over the previous year.
Oil prices were sustained by quantitative easing, but that ran out June 30 so liquidity slowed as a result, including speculative hedge fundflow into oil futures.
Fund outflow is nothing new and in fact, according to both Nomura Securities and Barclays, fundflow from Russian investors went back towards Russia a few weeks ago.