Other major miners are worth at least the same as they were at the start of 2007. Anglo's recent deals - including its decision to take control of diamond mining giant De Beers, raising its stake in Kumba Iron Ore and a July coal deal in Mozambique - have arguably done little to move away from a region that has held back its shares and, earlier this month, prompted an outlook downgrade from rating agency Standard & Poor's. So far this year, Anglo stock has lagged the sector by almost 20 percent.