賣195call，買225call. 看跌

來源: 挨踢於 2024-07-02 13:13:35 [檔案] [博客] [舊帖] [給我悄悄話] 閱讀數 : (0 bytes)

回答: long call position roll up是偏空的, 相當於bear call credit spread 由 opst 於 2024-07-02 12:26:57

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