Commodity markets are markets where raw or primary products are exchanged. These raw commodities are traded on regulated commodities exchanges, in which they are bought and sold in standardized contracts.
This article focuses on the history and current debates regarding global commodity markets. It covers physical product (food, metals, electricity) markets but not the ways that services, including those of governments, nor investment, nor debt, can be seen as a commodity. Articles on reinsurance markets, stock markets, bond markets and currency markets cover those concerns separately and in more depth. One focus of this article is the relationship between simple commodity money and the more complex instruments offered in the commodity markets.
Size of the market
The trading of commodities consists of direct physical trading and derivatives trading. Exchange traded commodities have seen an upturn in the volume of trading since the start of the decade. This was largely a result of the growing attraction of commodities as an asset class and a proliferation of investment options which has made it easier to access this market.
The global volume of commodities contracts traded on exchanges increased by a fifth in 2010, and a half since 2008, to around 2.5 billion million contracts. During the three years up to the end of 2010, global physical exports of commodities fell by 2%, while the outstanding value of OTC commodities derivatives declined by two-thirds as investors reduced risk following a five-fold increase in value outstanding in the previous three years. Trading on exchanges in China and India has gained in importance in recent years due to their emergence as significant commodities consumers and producers. China accounted for more than 60% of exchange-traded commodities in 2009, up on its 40% share in the previous year.
Commodity assets under management more than doubled between 2008 and 2010 to nearly $380bn. Inflows into the sector totalled over $60bn in 2010, the second highest year on record, down from the record $72bn allocated to commodities funds in the previous year. The bulk of funds went into precious metals and energy products. The growth in prices of many commodities in 2010 contributed to the increase in the value of commodities funds under management.
Commodities trading
Spot trading
Spot trading is any transaction where delivery either takes place immediately, or with a minimum lag between the trade and delivery due to technical constraints. Spot trading normally involves visual inspection of the commodity or a sample of the commodity, and is carried out in markets such as wholesale markets. Commodity markets, on the other hand, require the existence of agreed standards so that trades can be made without visual inspection.
Forward contracts
A forward contract is an agreement between two parties to exchange at some fixed future date a given quantity of a commodity for a price defined today. The fixed price today is known as the forward price
Futures contracts
A futures contract has the same general features as a forward contract but is transacted through a futures exchange.
Commodity and futures contracts are based on what’s termed forward contracts. Early on these forward contracts — agreements to buy now, pay and deliver later — were used as a way of getting products from producer to the consumer. These typically were only for food and agricultural products. Forward contracts have evolved and have been standardized into what we know today as futures contracts. Although more complex today, early forward contracts for example, were used for rice in seventeenth century Japan. Modern forward, or futures agreements, began in Chicago in the 1840s, with the appearance of the railroads. Chicago, being centrally located, emerged as the hub between Midwestern farmers and producers and the east coast consumer population centers.
In essence, a futures contract is a standardized forward contract in which the buyer and the seller accept the terms in regards to product, grade, quantity and location and are only free to negotiate the price.
Hedging
Hedging, a common practice of farming cooperatives, insures against a poor harvest by purchasing futures contracts in the same commodity. If the cooperative has significantly less of its product to sell due to weather or insects, it makes up for that loss with a profit on the markets, since the overall supply of the crop is short everywhere that suffered the same conditions.
Delivery and condition guarantees
In addition, delivery day, method of settlement and delivery point must all be specified. Typically, trading must end two (or more) business days prior to the delivery day, so that the routing of the shipment can be finalized via ship or rail, and payment can be settled when the contract arrives at any delivery point.