Metals price distortions and the warehouse system
In a short note Macquarie’s commodity research reviews price distortions and prospective changes related to the warehouse system of the London Metals Exchange (LME). Since 2008 LME warehouses have effectively withdrawn over 4 million tons of aluminium from the physical markets, producing a record premium for physical delivery versus exchange spot prices. Premiums have also climbed for other metals. A future increase in mandatory load-out rates could compress premiums but also adds to uncertainty about the resulting adjustment in exchange prices.