Index Options

所有普通股期权标准



交易单位

每期权合同代表100股。

权利金报价

用点和分数表示。一点相当于100美元。在3 美元以下交易的期权系列的最小跳动点是 0.05(5美元)。所有其它系列的最小跳动点为0.10 (10美元)。

执行价格区间

交易价格在$25.5以下的股票的区间为 2-1/2点。交易价格在25美元和200美元之间的股票的区间为5点。交易价格在200美元以上的股票的区间为10点。

履约类型

美式。期权可在到期日前的任何一个工作日履约。

到期月

两个近期月和一月，二月，或三月季度周期里的另外两个月。

到期日

到期月里紧接着第三个星期五的星期六。

持有量限制

限制的数量根据流通股的数量和成交量的不同而不同。最大的并且是频繁交易的股票的期权持有量限制为250,000合同。较小资本化的股票的持有量限制为 200,000， 75,000，50,000 或25,000 合同。一些交易所交易基金的持有量限制甚至高于250,000。有客户对冲豁免。

未持报立权人的最低客户融资

对通盘指数来说，融资的数量为权利金的数量加上15%当前底层指数价值（指数值乘以100美元），减去期权成为蚀价的数量（如果有的话）。对看涨期权来说，融资的最小数量不小于权利金加上10%的底层指数的价值。对看跌期权来说，融资的最小数量不小于权利金加上10%的看跌期权的执行价格。
对各个工业指数和窄盘指数来说，融资的数量为权利金的数量加上20%当前底层指数价值（指数值乘以100美元），减去期权成为蚀价的数量（如果有的话）。对看涨期权来说，融资的最小数量不小于权利金加上10%的底层指数的价值。对看跌期权来说，融资的最小数量不小于权利金加上10%的看跌期权的执行价格。

交易时间

东部时间的上午9:30至下午4:00。

履约结算价格

执行价格乘以$100。

履约结算时间

在任何工作日递交的履约通知会导致在履约后的第三个工作日的底层股票的递交。


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