这个就像股市的EFT 比如SPY，足够多的（挣钱的和不挣钱的股票）各类股票组合平衡,最终SPY earnings 不错

来源: island09 于 2025-01-12 04:58:36 [旧帖] [给我悄悄话] 本文已被阅读：次

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