让同学2021-11-07 10:52:13
相比于 broad market cap weighting,factor strategy tend to diversify risk exposure. 这句话不一定绝对是错的吧?single-factor 以及passive factor based strategy相对于broad market cap weighting会更集中,但是multi factor应该会更分散,而active factor不好说。是吗?另外passive为什么会更集中?只要我选的factor够多,就算是passive也不会集中呀。
回答(1)
开开2021-11-08 22:06:17
同学你好,书上的原话是:Relative to broad-market-cap-weighting, passive factor-based strategies tend to concentrate risk exposures, leaving investors exposed during periods when a chosen risk factor is out of favor.
可以这样理解,一般想做factor investing的,都是想要少数几个因子的收益。如果分散的因子敞口那和投资市场指数差异不大。
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