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白糖 波动加剧 天气因素影响显著

2017-09-08 09:01:54   中国经济网

隐含波动率是将期权价格代入权证理论价格模型,反推出来的波动率数值,往往在标的物价格出现较大波动前,隐含波动率会显著上升。

天气因素影响显著

因担心伊尔马飓风可能损坏主要种植地区的甘蔗作物,9月6日原糖继续上涨,主力合约最高触及14.32美分/磅,最低跌至13.89美分/磅,最终收盘价格上涨1.57%,报收在14.25美分/磅。行业组织巴西甘蔗工业协会技术主管周三表示,巴西中南部糖产区反常干燥的天气可能导致今年剩余时间和明年每公顷甘蔗总产量减少。

国内市场,截至8月31日,广西累计入榨甘蔗4300万吨,同比减少132万吨;产混合糖529.5万吨,同比增加18.5万吨;产糖率12.31%,同比提高0.78个百分点;累计销糖437万吨,同比增加20万吨;产销率82.53%,同比提高0.83个百分点。目前,白砂糖含税平均售价6749元/吨,同比提高1186元/吨。其中,8月单月销糖60万吨,同比减少1万吨。总体上销售数据平稳。

9月6日,由于抛储传闻影响,郑糖1801合约尾盘跳水。

悲观情绪延续

9月7日,1801合约日盘收于6221元/吨,成交53万手,持仓量72万手,成交量、持仓量均维持稳定。9月7日,白糖期权总成交量1.09万手(单边,下同),总持仓量5.32万手,目前1801合约成交量占全部白糖期权合约成交量的比重为70%,持仓量占全部白糖期权合约的60%。可以看出,当前白糖期权的主要参与者倾向于在主力合约上进行交易。白糖期权整体成交量PC_Ratio移动至1.05,持仓量PC_Ratio则维持在0.89,白糖看跌期权成交量占比增加,悲观情绪延续。

通过观察白糖期权隐含波动率斜率也可以发现,虚值看跌期权隐含波动率显著上升,波动率曲线在看跌期权虚值部分逐渐变得陡峭,反映出期权市场参与者对白糖继续下行的可能性较为认同。

期权隐含波动率率先拐头

8月31日以来,白糖期权隐含波动率出现拐头迹象,在期货盘面仍处于振荡的局势下,隐含波动率率先触底反弹,反映投资者情绪逐渐趋于谨慎。果然,近期郑糖波动加剧,自9月4日以来,郑糖主力合约价格下行了2.01%,对应1月平值期权,隐含波动率继续上行至13.25%,相较一周前隐含波动率上升了1.74%。目前1月平值期权隐含波动率与历史波动率的差值扩大至1.12%。建议投资者继续持有看多波动率头寸,买入宽跨组合(买入SR801P6300和SR801C6500),9月7日盈利27元/份,自8月31日建仓以来累计盈利53.5元/份。

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