Bridgewater Investment Chief Sees New Era Of Volatility. Oil prices rebound after worst weekly loss in more than a year, downed Israeli jet. Barclays Bank faces fresh serious fraud office charges over £2.2bn loan given to Qatar in 2008. Oil market is ‘unconvinced’ by the recent price rally, Goldman Sachs says. OPEC hikes its 2018 forecast for oil supply growth on a flood of U.S. crude. Markets are reacting to an excessive monetary and fiscal stimulus of U.S. economy.