ratio spread需要“预测”一下可能的落点。我一般只做几周的,快进快出。:)
主要我TA不好,一般只是根据iv做决定,时间越长,误差越大,黑天鹅也越可能发生。
ratio spread需要“预测”一下可能的落点。我一般只做几周的,快进快出。:)
主要我TA不好,一般只是根据iv做决定,时间越长,误差越大,黑天鹅也越可能发生。
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