option spreadglossary / OPTION SPREAD option spread. Securities. The difference between the option price and the market price of the underlying stock when the option is exercised. See SPREAD. 词条贡献者 法律翻译Jessie,在一家亚洲一流律师事务所的北京办公室担任全职法律翻译,擅长翻译有关港口、铁路、公路与海运的法律文件。