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Explanation of Some Terms in Option Trading

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    bond

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    指在option交易中,期权义务方必须按照规则缴纳的金额。维持保证金每日进行计算。[/li]
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    保证金催缴

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    指在期权义务方的保证金水平低于维持保证金时,通知其增加保证金。[/li]
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    保证金风险

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    指投资者在卖出开仓后,需要时刻保证足额的保证金,否则会遭到强行平仓的风险。[/li]
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    备兑开仓

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    指在拥有足额标的证券的基础上,卖出相应数量的认购期权合约。[/li]
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    比率价差策略(Ratio Spread)

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    指买入一定数量的期权,同时卖出更多数量的期权。买入的期权与卖出的期权具有相同合约标的和到期日,但行权价不同。[/li]
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    标的证券

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    Also known as the underlying asset of a contract, it refers to the asset that both parties are required to buy or sell under an option contract, and is the underlying asset corresponding to the option. The underlying securities corresponding to individual stock options are the corresponding stocks orETF。[/li]
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    Volatility

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    指一种衡量股票价格变化剧烈程度的指标,一般用百分数表示。股价波动率与认购期权、认沽期权价值均为正相关关系。[/li]
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    波幅

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    指一种测定价格上下波动程度的指标,通常用同一对象市场价格波动的最高点与其最低点的差额来表示。[/li]
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    Black-Scholes模型

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    又称B-S模型,是1973年由两位经济学家BLACK、SCHOLES提出的、对欧式期权进行定价的公式,对衍生金融工具的合理定价奠定了基础。 曾获诺贝尔经济学奖。[/li]
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    场内期权

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    指在交易所挂牌上市的标准化期权合约。[/li]
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    场外期权

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    指交易双方达成的非标准化期权合约。[/li]
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    垂直价差策略(Vertical Spread)

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    指买入一个期权的同时卖出一个期权,这两个期权具有相同合约标的和相同到期日,但具有不同的行权价。[/li]
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    场内期权

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    指在交易所挂牌上市的标准化期权合约。[/li]
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    场外期权

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    指交易双方达成的非标准化期权合约。[/li]
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    垂直价差策略(Vertical Spread)

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    指买入一个期权的同时卖出一个期权,这两个期权具有相同合约标的和相同到期日,但具有不同的行权价。[/li]
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