老師請問,在產(chǎn)生超額收益的三個building blocks中,為什么 factor timing是屬于alpha skills 而不是reward factors?
題干中說的是passive factor based momentum策略,這個策略的意思是把動量作為一個因子么?如果C改成,overweight最近股價漲的好的股票,是否對?
active share不太理解,主動管理的基準(zhǔn)是啥?
R24第十二題,lookahead bias,這個概念結(jié)合這道題幫忙講講,謝謝
2016年 equity 上午題, 關(guān)于holding—based 的reason 里面,答案寫的是portfolio的P/E ,P/B,dividend yield 都和benchmark不一樣。想問下,如果只答了其中一個指標(biāo),比如只寫了P/E的不同,可以拿到全部的分?jǐn)?shù)么
2016年 equity 上午題,這里計算組合的active risk 時,題目中說的是:各子組合間的active return 是uncorrelated的,但沒說active risk 之間是uncorrelated的,為何計算時不用考慮active risk 之間的相關(guān)性?
拆分不應(yīng)該導(dǎo)致指數(shù)的變化,實際變化的指數(shù)對吧?
value weighted index權(quán)重自動調(diào)整是為啥?也就是說不需要基金經(jīng)理手工調(diào)整?
老師,Reading 24里的Top down和Bottom up兩種辦法是屬于Fundamental還是Quantitative Approach 呢?
老師你好,關(guān)于求方差這里不是很理解,方差是risk,上面的Ri是return,是兩個概念,為什么求方差的時候可以直接對return兩邊同時平方呢
老師您好!etc的特點不太明白,課程講的是直接交易股票,但是平時個人通過公募基金購買etc指數(shù)也是直接通過錢買啊?
老師你好,reading10講到limitation of historical estimates的時候,講到Asynchronous data,老師一筆帶過。老師說的是短期數(shù)據(jù)會有asynchronous data,但是我看教材里的意思是more frequent data points才會發(fā)生asynchronous data。這個more frequent data和長期短期數(shù)據(jù)有什么關(guān)系呢,我理解more frequent data是長期數(shù)據(jù)? 這點沒搞清楚。
請問這里為什么說lower active risk is preferred? 我的理解是:兩個portfolios have similar risk factor exposures(是說總風(fēng)險里的factor exposure相似,也就是beta), 為什么會給出結(jié)論“總的絕對風(fēng)險低&低active risk會更preferred"? 應(yīng)該是沒法推出來吧? 因為IR=Active return/ active risk, 這里return和risk都沒說明白感覺。well-constructed portfolio 不是風(fēng)險低,而是most efficient.
請問在原版書中 reading 25. Q6. 的解答中 Active risk is affected by the degree of cross-correlation. The correlation of two stocks in different sectors is most likely lower than the correlation of two stocks in the same sector. Therefore, the correlation of the energy/financial pair is most likely lower than that of the automobile/automobile pair. Because both positions were implemented as an overweight and underweight, the lower correlation of the two stocks in the new position should contribute more to active risk than the two-stock position that it replaced. cross-correlation 越低不是代表 risk to the total portfolio 越低嗎? 為什麼是 contribute more to active risk than the two-stock position that it replaced? 請問是因為 portfolio beta 偏離了 benchmark 的關(guān)係嗎?
老師你好,我在做CFA題庫關(guān)于CME一道題的時候,題目如圖,這個我用TK方法計算了full integreted和full segmented兩種方法然后做了權(quán)重,但是沒有加那個illiquidity premium,答案是需要加的,但是書上根本就沒有illiquidity premium什么事啊。 為什么要加這個呢?
程寶問答