20%有可能跌到5%，例如ARKK，所以风险肯定高。我是通过计算Sharpe Ratio可以达到最优投资组合。

来源: parentb 于 2024-07-07 07:16:36 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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