期权是一种只给买方带来权利，而不需买方承担义务，使其可在未来以某一确定价格买卖资产的衍生品。
An option is a derivative contract that gives the purchaser the right, but not the obligation, to buy or sell an asset at a certain price.
股票期权使得持有者有权在特定时期里以一个固定价格买卖底层股票。
A stock option gives the holder the right to buy or sell the underlying stock at a fixed price for a specified period of time.
期货合同是买卖资产的合同，而期权合同则是如同保险。
Whereas futures contracts lock in the participants to buy or sell an asset, an option is more like insurance.
买卖期货合约或期权的亏蚀风险可以极大。
The risk of loss in trading futures contracts or options is substantial.
股票期权作为一种机制，包含了薪酬及股票买卖两个有内在联系的合同。
As a motivation mechanism, stock option includes two interrelated contracts: compensation, buying and selling of stocks of the company.
除了指数期货和期权，期货交易所亦买卖四种货币期货及30种股票期货合约。
Besides Index futures and options, the HKFE also traded in four currency futures and 30 stock futures contracts.
期权交易市场为投资者提供了一种保值手段，通过买卖齐全他们可以保护自己在特定证券的地位。
Options trading market for investors with a hedge against inflation means they can protect themselves through the sale of complete in a particular stock status.
其中尤其要注意，买卖中的预售和抵押中的房屋期权抵押，两者的结果并不发生物权变动。
It is paid attention to especially that real right change always do not occur as result of advance booking and mortgage.
股票期权方面，到1999年年底，共有17只股票的期权合约在市场上买卖。
As regards stock options, contracts in respect of a total of 17 stocks were traded in the market by the end of the year.
期权交易市场为投资者提供了一种保值手段，通过买卖齐全他们可以保护自己在特定证券的地位。
Options is a contract in which the contract within a specified period of time to set prices above a certain power purchase or sell the rights.
目前国际上防范汇率风险的主要工具有远期外汇买卖、外汇期权、外汇期货和货币互换等。
The tools of risk management in the international market usually include forward contract, futures, options and swap.
提出了一种考虑需求不确定因素的双边可选择电力远期合同模型 ，给出了合同价格的计算公式 ，计算了买卖双方期权的最优敲定电价。
The calculation formula of price of forward contracts was given and the optimal strike price of options for seller and buyer were calculated.
提出了一种考虑需求不确定因素的双边可选择电力远期合同模型 ，给出了合同价格的计算公式 ，计算了买卖双方期权的最优敲定电价。
The calculation formula of price of forward contracts was given and the optimal strike price of options for seller and buyer were calculated.
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