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50ETF期权的保证金是固定的吗?如何计算?

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上证50ETF期权有两个方向选择,一个买方一个卖方,做期权卖方的话是需要缴纳一定的保证金的,卖方保证金是有固定计算公式如下:

一、开仓保证金的最低标准

1.认购期权义务仓开仓保证金=[合约前结算价+Max(12%×合约标的前收盘价-认购期权虚值,7%×合约标的前收盘价)]×合约单位

2.认沽期权义务仓开仓保证金=Min[合约前结算价+Max(12%×合约标的前收盘价-认沽期权虚值,7%×行权价格),行权价格] ×合约单位

二、维持保证金的最低标准

1.认购期权义务仓维持保证金=[合约结算价+Max(12%×合约标的收盘价-认购期权虚值,7%×合约标的收盘价)]×合约单位

2.认沽期权义务仓维持保证金=Min[合约结算价 +Max(12%×合标的收盘价-认沽期权虚值,7%×行权价格),行权价格]×合约单位

简单的说,当月合约价格在300元/张以下的,保证金在3000元左右,500元/张的合约,保证金4000元左右,更贵的合约保证金也更高,但是能把刚卖出期权合约的权利金收入囊中,实际上也高不了太多。



更多期权相关知识讯息请关注【期权酱】哦~~~





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