“The story of how this works begins in 27 industrial warehouses in the Detroit area where a Goldman subsidiary stores customers’ aluminum. Each day, a fleet of trucks shuffles 1,500-pound bars of the metal among the warehouses. Two or three times a day, sometimes more, the drivers make the same circuits. They load in one warehouse. They unload in another. And then they do it again. This industrial dance has been choreographed by Goldman to exploit pricing regulations set up by an overseas commodities exchange. The back-and-forth lengthens the storage time. And that adds many millions a year to the coffers of Goldman.”
