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The LME Aluminium ("LME Aluminum" in American and Canadian English) refers to a group of spot, forward, and futures contracts traded on the London Metal Exchange (LME), for delivery of primary aluminium. These contracts can be used for price hedging, physical delivery of sales or purchases, investment, and speculation. [1] Producers, semi-fabricators, consumers, recyclers, and merchants can use aluminium futures contracts to hedge aluminium price risks and to reference prices. [2] Some companies that use the LME Aluminium contracts to hedge aluminium prices include General Motors, Boeing, and Alcoa. [3] [4] [5]
As of late 2019, the system of the LME Aluminium contracts was associated with about 1.49 million tonnes of physical primary aluminium stored in over 500 warehouses around the world. [6] [7] [8] [9] For comparison, world production of primary aluminium in 2019 was 63.70 million tonnes, suggesting that the LME Aluminium contracts only make up about 2.3% of world's annual production. [10]
LME Aluminium contracts trade on the London Metal Exchange, which introduced them in 1978. [11] The contracts require physical delivery of the asset for settlement, and deliverable assets for the contracts are 25 tonnes of high-grade primary aluminium. The contract prices are quoted in US dollars per tonne. LME prices have minimum tick sizes of $0.50 per tonne (or $12.50 for one contract) for open outcry trading in the LME Ring and electronic trading on LMEselect, while minimum tick sizes are reduced for inter-office telephone trading to $0.01 per tonne (or $0.50 for one contract). Carry trades involving aluminium futures also have reduced minimum tick sizes at $0.01 per tonne. [12] Contracts are organized along LME's prompt date (or delivery date) structure.
Prices from LME Aluminium futures contracts are widely used to help set aluminium prices more generally. Because futures markets are open to many buyers and sellers and have lower trading costs than physical (cash) markets, they tend to reflect supply and demand more accurately. Prices are also publicly available, which makes it harder for a small number of large companies to control prices.
For these reasons, LME Aluminium futures prices are often used as reference prices for aluminium transactions, even when the metal itself is bought and sold outside the exchange. [13]
LME Aluminium prices are also included in major commodity indices, such as the Bloomberg Commodity Index and the S&P GSCI commodity index. Because many investment funds track these indices, changes in LME Aluminium prices can affect the performance of a wide range of investment portfolios. [14] [15]
LME Aluminium also offers other derivatives related to primary aluminium. Options, TAPOs, Monthly Average Futures, and LMEminis. Aluminium products like aluminium alloys and Alumina also have their own LME contracts for trading. [16]
Aluminum contracts are also available for trading on the Chicago Mercantile Exchange (CME). The CME Aluminium futures contract are for 25 metric tonnes of primary aluminium and prices are quoted in US dollars per tonne. 60 consecutive monthly CME Aluminium contracts are available for trading. [17]
The Shanghai Futures Exchange (SHFE) offers aluminum futures contracts for trading as well. SHFE contracts are for 5 metric tonne of primary aluminum and prices are quoted in Yuan per tonne. [18]
Stocks of aluminium held in LME-approved warehouses have been the subject of controversy.
In 2013, several aluminium users filed lawsuits alleging that the LME warehouse operator Metro International Trade Services and major commodity and financial firms colluded between 2009 and 2012 to delay the release of aluminium from warehouses. This, the lawsuit claimed, had the effect of reducing available supply and thus driving up prices and delivery premiums—the extra costs paid above the base exchange price to cover delivery, storage, and local supply conditions. [19]
At the same time, the United States Senate Permanent Subcommittee on Investigations examined the role of Goldman Sachs in the aluminium market, [20] focusing on its ownership of LME-approved warehouses and the accumulation of aluminium warrants linked to futures contracts. [21]