如果 SPY 下跌接近 25-40%，低于 200 日移动平均线. 如果你有一笔闲钱. 一次投入的效果会好些.

来源: JS_Greenwich 于 2023-07-13 13:48:49 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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