期权有两种形式：即看涨期权和看跌期权（亦称买权和卖权）。

There are two different types of options:calls and cuts.

youdao

期权有两种形式：即看涨期权和看跌期权（亦称买权和卖权）。

There are two different types of options:calls and cuts.

youdao