對沖工具
hedging instruments
套期工具是保護在利率或匯率的不利變動的企業的利潤和現金流的方法，他們基本上都是保險的一種形式，企業可以冒了出來。
Hedging instrument are methods of protecting the business’ profit and cashflow from adverse movements in interest rate or exchange rates, they are basically a form of insurance policy the business can take out.