hedge的主要目的是保護，不是獲利，spread put 降低了cost 但犧牲了些狠跌的保護。

來源: 任靜鍋- 於 2025-02-18 11:33:09 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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