d、术语 期权类（option class）：所有类型相同的期权（看涨期权或看跌期权）。 期权系类（option series）：具有相同到期日和执行价格的某个给定类型的所有期权...
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本文以股指类衍生金融工具的一种——股票指数期权为研究对象，侧重于用数量方法来阐述其在我国开发应用的意义。
Targeted at one of the stock index derivative instruments-stock index option, this paper does some research work to elaborate the significance of developing it in China.
投资人在同一时间买进和卖出同一类期权，此两个期权到期日相同，但执行价格不同。
It is a kind of option strategy that the investor buy and sell the same type of two options which have the same expiry date but with the different strike price.
它们可分为两类：受限制股份、受限股票单位(rsu，授予后可以转换为普通股，以下与受限制股份统称为受限股)，以及期权。
They fall into two categories: restricted stock and restricted stock units, or RSUs, which can be exchanged for ordinary shares as they vest, and equity options.
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