散戶作戰手冊「左側交易與右側交易」先談左側
左側交易追求的是成本,右側交易追求的是勝率
散戶作戰手冊
主題:「左側交易與右側交易」先談 左側交易
市場每次大跌時,都會有讀者提問:到底該左側接,還是等右側進場?
其實答案,是你必須知道,自己到底在交易什麼。
我們先速記這句話:左側交易追求的是成本,右側交易追求的是勝率。
我來更進一步解釋 —
左側交易:重點在於 限制犯錯成本,而不是猜最低點。在基本面沒有改變時,用時間換成本。
右側交易:重點在於 放棄最低點,換取更高的勝率。在市場重新確認趨勢後,用成本換勝率。
事實上並沒有哪種一定比較好,如果沒有一套紀律,兩種最後都可能變成 #追高殺低!
最重要的是,不要在左側滿倉卻用右側的停損;也不要等到右側確認了才後悔自己左側沒有勇氣。
何時值得開始左側布局?
大叔會留意當這三個條件同時成立時:
1. 公司的基本面沒有改變
財報沒有惡化,全年指引沒有下修,原本支持估值的邏輯仍然成立。價格可以跌,但投資理由不能消失。
2. 買的是高品質公司或 ETF
因為真正不知道最低點的時候,你需要的是可以陪你等待的資產,例如買龍頭股,而不是每天波動兩成的小型熱門股。
3. 你願意接受短期帳面虧損
左側布局最大的代價,就是市場可能繼續下跌一段或長或短的時間。如果無法接受這段等待,就不適合左側交易。
左側交易的風險與門檻
一旦你把左側交易,當成主要策略,甚至一路攤平到滿倉,門檻其實非常高。
首先你需要對公司有足夠深的研究,並能分辨市場修正與基本面惡化的差別,更要有承受三成以上浮虧的心理準備,以及五年以上不需要動用這筆資金的耐心。
否則,左側最後很容易從價值投資,變成沒有上限的攤平。
所以,
即使是左側交易,你也要把自己要打多少的子彈設定好。
必須認知到,我們不是機構,無法本多終勝!
接著,大叔將會在下回說明 右側交易。謝謝收看!
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