A call (or call option) is a contract that gives the holder¹ the right to buy a stated number of units of the  “underlying²” 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 maturity³ 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 futures⁴ contract or a swap⁵ (“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

上一篇：进出口货物名称中英对照(1)c 下一篇：银行法相关词汇(详解)