オプション契けい約やく

noun

option contract

A financial or legal agreement giving one party the right, but not the obligation, to buy or sell an asset at a predetermined price within a specified period.

• このオプション契けい約やくでは、来らい月げつまでに株かぶを買かう権けん利りが与あたえられる。

  This option contract gives the right to buy shares by next month.