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期权观察:采取卖出备兑策略为宜

2017-08-22 13:28:04   中国经济网

周一上证综指高开高走,强势上行,尾盘报收于3286.91点,收涨0.56%,市场做多情绪被点燃,挑战3300点压力位。两市成交量4556.07亿元,减少242.93亿元,缩量上行。各大指数普涨,中证500指数领涨,涨幅0.88%。盘面看,钢铁、通信、有色金属、家电等行业板块领涨,下跌的行业板块仅有银行和食品饮料板块。从概念板块来看,次新股概念板块领涨,板块内个股掀起涨停潮。值得注意的是,受中国联通复牌影响,通信和国企混改概念早盘崛起,午后略有回落。此外,两只养老金入市股票受到资金热捧。期指方面,IC合约领涨,涨幅高达1.12%,IH合约下跌0.09%。标的资产方面,50ETF早盘冲高回落,尾盘报收于2.663,跌幅0.04%,成交量增至230.31万手,减少46.69万手,市场资金尾盘大幅流入。

期权市场成交量小幅下降。全日累计成交664891张期权合约,较上一交易日减少106682张合约。其中,认购期权成交374748张,较上一交易日减少12.7%。认沽期权成交290143张,较上一交易日减少15.2%。日成交量PCR小幅降至0.774,上一交易日为0.797,市场情绪偏乐观。持仓方面,上证50ETF期权总持仓量小幅降至1748750张,减少11525张,主因在于8月期权合约本周内到期,主力移仓换月导致总持仓量下降。认购期权持仓量持续大于认沽期权持仓量。8月认购和认沽期权成交量最大的合约均集中在8月2.65合约上,短期内市场将围绕2.65一线上下波动。

标的资产30日历史波动率12.92%,略微下降。期权隐含波动率维持日内下降趋势。从长周期看,认沽期权隐含波动率小幅抬升,认购期权隐含波动率小幅下降,两者差异扩大。平值期权方面,50ETF购8月2.65期权的隐含波动率为8.18%,较上一交易日减少1.39个百分点。50ETF沽8月2.65期权的隐含波动率为11.43%,增加1.84个百分点。

图为8月平值期权隐含波动率变动

因标的资产50ETF价格小幅下跌,认购期权价格全线下跌。因临近到期日,虚值部分的认购期权价格跌幅更大,时间价值加速损失。绝大部分的认沽期权价格也呈下跌趋势,仅8月实值认沽期权价格小幅上涨,市场对于标的资产价格的方向性变化不敏感。8月平值认购合约“50ETF购8月2.65”报收于0.0165,下跌21.43%;8月平值认沽合约“50ETF沽8月2.65”报收于0.0055,下跌5.17%。

综合来看,标的资产50ETF缩量下跌,呈现整固后上攻态势。从技术上看,50ETF仍面临20日均线压制,短期内高位振荡概率较大。期权策略方面,投资者仍然可把握短期机会,采取卖出备兑策略为主,以防关键压力位的大幅回调风险。

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