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市场热点扩散 优质量化基金获青睐

2017-09-21 06:47:04   中国经济网

长信基金量化团队认为,近期市场热点轮动较快,量化模型持股分散,更适应目前的市场环境。同时,经历上半年的“一九行情”之后,诸多量化团队对模型作出了一定修正,更加注重企业的内在价值及估值,调整后的模型比较适应下半年的市场。

财汇金融大数据终端显示,上半年成立的量化基金共计17只,平均募集规模仅约4.16亿元。伴随业绩回暖,三季度以来,量化基金发行回暖迹象有所显现。7月至今,已有10余只量化型基金发行,富国、万家、长信、新华、建信、银华、平安大华等基金公司均有产品发行。(下转A02版)

(上接A01版)从募集效果来看,一些前期业绩表现较好的量化团队新发行的产品也受到了投资者青睐。9月20日,华泰柏瑞量化阿尔法基金提前结束募集,募集金额超过50亿元,显示出资金对于优质量化产品的追逐。

业内人士表示,量化产品发行升温,与当前权益市场逐步向好有关。近期多只绩优投资团队产品销售良好,或显示资金正在逐步进场。

市场变迁影响量化因子效能

面对今年以来量化投资所处市场环境发生的变化,不少量化基金经理也在思考,如今的环境会对量化投资模型中各因子的效能产生什么样的影响,以及该作出何种应对。

华泰柏瑞基金副总经理田汉卿表示,今年市场最为突出的变化是小市值因子的失效。2007年至2016年,A股市场中小市值因子的超额收益显著,但在海外成熟市场,市值因子通常会出现均值回归,是一个比较典型的风险因子。所以,尽管在A股市场2016年年底之前小盘股连续跑赢大盘股,市值因子的超额收益回撤很小,但是市值因子是有风险的。在成熟市场,市值因子可以发生很大的反转,是比较典型的风险因子。在可以获得其它更加稳定的阿尔法因子的情况下,要在A股市场追求较为稳定的超额收益,就没有必要在小盘因子上放置过多的权重。因此,一直以来,华泰柏瑞基金的模型坚持对市值因子做中性化处理,不“赌”大小盘。

长信量化基金团队预计,未来市值因子波动性会加大,将考验基金经理的因子择时能力;随着市场对于投资确定性的要求提高,基本面因子的有效性会逐步提高;此外,量价类因子的有效性比较依赖市场状态,需要基金经理对市场状态有较强的判断能力。

对于量化基金的选择,财富证券研究员皮辉娟表示,需要注意以下几点:第一,是否采用严格的系统化量化投资方式,量化产品最基本的就是有完善的投资体系和标准的流程体系;第二,超额收益要稳定,波动率和回撤在一定范围内变化;第三,关注主动型量化基金背后的选股逻辑,好的量化模型应该结合市场、监管等各种因素,关注市场变化并能够契合市场风格,同时当市场风格发生显著改变时,能够及时考量风格转换背后的逻辑和并作出相应调整改变。

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