A derivative is a financial instrument that is derived from some other asset, index, event, value or condition (known as the underlying asset). Rather than trade or exchange the underlying asset itself, derivative traders enter into an agreement to exchange cash or assets over time based on the underlying asset. A simple example is a futures contract: an agreement to exchange the underlying asset at a future date.
Derivatives are often leveraged, such that a small movement in the underlying value can cause a large difference in the value of the derivative.
Derivatives can be used by investors to speculate and to make a profit if the value of the underlying moves the way they expect (e.g. moves in a given direction, stays in or out of a specified range, reaches a certain level). Alternatively, traders can use derivatives to hedge or mitigate risk in the underlying, by entering into a derivative contract whose value moves in the opposite direction to their underlying position and cancels part or all of it out.
Derivatives are usually broadly categorised by:
* The relationship between the underlying and the derivative (e.g. forward, option, swap)
* The type of underlying (e.g. Freight derivatives based on Baltic Exchange shipping indices), equity derivatives, foreign exchange derivatives and credit derivatives)
* The market in which they trade (e.g., exchange traded or over-the-counter)
USES
Hedging
Hedging is a technique designed to eliminate or reduce risk.
Derivatives allow risk about the price of the underlying asset to be transferred from one party to another. For example, a wheat farmer and a miller could sign a futures contract to exchange a specified amount of cash for a specified amount of wheat in the future. Both parties have reduced a future risk: for the wheat farmer, the uncertainty of the price, and for the miller, the availability of wheat. However, there is still the risk that no wheat will be available because of events unspecified by the contract, like the weather, or that one party will renege on the contract. Although a third party, called a clearing house, insures a futures contract, not all derivatives are insured against counterparty risk.
Speculation and arbitrage
Derivatives can be used to acquire risk, rather than to insure or hedge against risk. Thus, some individuals and institutions will enter into a derivative contract to speculate on the value of the underlying asset, betting that the party seeking insurance will be wrong about the future value of the underlying asset. Speculators will want to be able to buy an asset in the future at a low price according to a derivative contract when the future market price is high, or to sell an asset in the future at a high price according to a derivative contract when the future market price is low.