期權讓支付期權金的買方，可按合約指定的價格及時間選擇買入或沽出相關資產，而毋須一定交易。
An option allows its buyer, in return for a premium, to choose whether to buy or sell the underlying asset at the contractual price and time.
期權讓支付期權金的買方，可按合約指定的價格及時間選擇買入或沽出相關資產，而毋須一定交易。
An option allows its buyer, in return for a premium, to choose whether to buy or sell the underlying asset at the contractual price and time.