The lower two strike prices are used in the bull spread, and the higher strike price in the bear spread.
在牛市价差中使用较低的两个执行价格，在熊市价差中使用较高的执行价格。
The problem comes when the market crashes and prices drop below the strike price of the option.
但当市场崩溃、资产价格跌落到行权价格以下时，问题就出现了。
Selling calls gives investors immediate cash as well as the potential for further gains in return for capping those gains at the strike price.
出售看涨期权令投资者获得现金，同时还有可能在将来获利，代价是期权执行价为股票的收益封了顶。
This paper studies the pricing on Asian geometric average options with fixed strike price at any valid time.
研究了具有固定敲定价格的几何型亚式期权在任意有效时刻的定价问题。
Secondly we prove in detail the pricing model of Asian geometric average options with floating strike price.
详细推导了以几何平均值作为敲定价格的几何型亚式期权的定价公式。
This kind of option strategy is comprised by one put and one call options with the same strike price and the same expiry date.
该组合由两份执行价格和到期日均相同的看涨期权和看跌期权组成。
Binary option is also an exotic option, its value depends on whether the price of underlying asset is higher than strike price.
二元期权也是一种奇异期权，其收益取决于到期资产价格与执行价格的大小。
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 paper discusses the character of strike price in pricing real option similarly American option and describes it using Geometric Brownian Motion.
本文通过对类似于美式期权的实物期权的执行价格的特征进行分析，并运用几何布朗运动对其进行了描述。
When the strike price of an option is equal to (or nearly equal to) the market price of the underlying security, we call this option is at the money.
当期权的执行价格非常接近标的物的即期价格时，则称该期权处于平价状态。平价期权实际上可以是处于略为价内或价外的状态。
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.
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。
More precisely, for one day 'quote, the implied volatility is a function of two parameters: the strike price and the time to maturity, exhibiting a surfaced shape.
确切的说，对于某一天的期权报价，隐含波动率是执行价格和存续期的二元函数，呈现曲面的形态。
A put option is an agreement in which the buyer has the right (but not the obligation) to exercise by selling an asset at the strike price on or before a future date;
看跌期权亦为一种协议，在该协议中，买方有权（但非义务）以履约价格在未来某日或未来某日之前出售某一资产；
A put is an option that gives the buyer the right, but not the obligation, to sell the underlying futures contract at the strike price on or before the expiration date.
看跌期权赋予买方以权利，但不必负有义务，在期权到期日当天或者到期之前，按照敲定的价格卖出相关期货合约。
A call is option that gives the buyer the right, but not the obligation, to purchase the underlying futures contract at the strike price on or before the expiration date.
看涨期权赋予买方以权利，但不必负有义务，在期权到期日当天或到期之前，按敲定价格买进相关期货合约。
In the money: the state of an option when the price of the underlying asset is higher (in the case of a call option) or lower (in the case of a put option) than the option's strike price.
(期权)到价：指期权基础资产的价格高于(指看涨期权)或低于(指看跌期权)执行价的情况。
And if Amazon or whatever stock you buy isn't trading at or above the strike price when the options expire, you'll still own the shares, but at a lower cost than if you had just bought them outright.
如果亚马逊或你买的其他任何股票到期的价格低于行权价，你将继续拥有这些股票，但你持有的价格将比你当初直接买进时的价格有所降低。
Options can soar in value if the stock price rises above the set purchase, or strike, price.
如果股票价格超过预定价格或是履约价格，期权的价值就会飙升。
Options can soar in value if the stock price rises above the set purchase, or strike, price.
如果股票价格超过预定价格或是履约价格，期权的价值就会飙升。
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