TTER
2024-01-31 14:42請問pairs trading要求歷史ρ相關(guān)性高,這里是必須ρ正相關(guān)還是負相關(guān)度高,還是都可以?pairs trading一定是long一個short一個么?謝謝
所屬:CFA Level III > Equity Portfolio Management 視頻位置 相關(guān)試題
來源: 視頻位置 相關(guān)試題
1個回答
王蘇云助教
2024-01-31 16:06
該回答已被題主采納
同學,你好
pairs trading要求歷史ρ相關(guān)性高,這里是可以是正相關(guān)度高,也可以是負相關(guān)度高,都可以。pairs trading是一種特殊的市場中性策略,一定有l(wèi)ong有short。參考原版書:A specific form of market-neutral strategy is pairs trading, where an investor will go long one security in an industry and short another security in the same industry, trying to exploit what the investor perceives as “mispricing.”
祝你學習進步~
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追問
ρ取值是-1~+1,+1是正相關(guān),-1是負相關(guān),0是相關(guān)度最低,對不?
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追問
-1是價格反向變動
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追答
同學,你好。是的,你說的對的。
原版書上的定義:Pairs trading uses statistical techniques to identify two securities that are historically highly correlated with each other.目前見到的關(guān)于這個題目的考點都會直接給出historically highly correlated with each other 相近意思的詞,直接判斷就可以了。
祝你學習進步~
