SPY有30%与QQQ重叠，SPY更稳一些，如果愿意承受波动可以买QQQ，回报比SPY要好一些。

来源: parentb 于 2024-04-25 11:27:48 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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