金融英语名词CallOptions
A call (or call option) is a contract that gives the holder the right to buy a stated number of units of the“underlying” asset at a given price (which is called the exercise price or strike prile, here we denote the price by Ｘ) from the counterparty(called the writer of the option).In the case of a European option,this right can be exercised on a given maturity date T,while for an American option it can be exercised at any time until the terminal date T.Depending on the underlying asset on which the option is written, a call can be an option on a stock,a stock market index, a currency, a commodity, a bond, or an interest rate,or even a futures contract or a swap (“swaption”). Currency option is popular.
A call option allows you to obtain only the “nice” part of a forward purchase. Rather than paying Ｘ for the foreign currency(as in a forward purchase),you pay no more than Ｘ, and possibly less than Ｘ
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