factor mimicking
老師,這道題,答題時(shí)只答劃線部分可以么?
官網(wǎng)題Equity-LM2-18題:答案寫的是overweights low volatility (31% versus 28%), which is a risk reduction approach ;underweights momentum (14% versus 17%), which is a return-oriented approach;為什么正確答案只能選A risk reduction;而說(shuō)return oriented 是錯(cuò)的呢?麻煩解答,謝謝老師!
減少tracking error
reading18課后第5題,限制borrowing and selling,應(yīng)該會(huì)lower collateral requirement啊
不小心按錯(cuò)了采納,接著上回的問。那我要怎么知道m(xù)utual fund的費(fèi)用和derivative的誰(shuí)高誰(shuí)低呢?
老師您好!本題active share變化的判斷可否這么理解:公式AS=1/2*|Wp-Wb|得到AS=1/2*|-1%|+1/2*|1%|=1%,其中trade 1是Fund 3 traded back to benchmark,deviation 減小所以active share 減少1%;trade2是Fund 3偏離基準(zhǔn),active share變化幅度就是增加1%;兩筆交易疊加AS remaind unchanged? 圖2中kaikai老師0-還是-0的方法理解不透,類題是是不是可以用上述公式加方向判斷來(lái)解,謝謝!
readong15課后題7,追求TE最小化,交易費(fèi)可能會(huì)更多?。?
百題Case 4: Sonera Endowment Fund,第二問:沒有明確說(shuō)明下,要怎么區(qū)分style說(shuō)的是holding v.s. return,還是value v.s. growth?
一般來(lái)說(shuō)對(duì)比derivative 和 fund的cost的話,說(shuō)的是期初cost?所以derivative cost比mutual fund低?但是option的cost比其他derivatives高?(另百題Case 4: Sonera Endowment Fund第4問選B)?
大市值=value stock = 低價(jià)股?小市值=growth stock = 高價(jià)股?
百題Case 2: Bobby Sarkar:第3問和第4問1)從哪里看出B和C manager用了sampling,為什么sampling能得出靠運(yùn)氣的結(jié)論?2)多少的差異依舊算是full replication?3)blending stratified sampling with optimization是只針對(duì)小市值的stock嗎?
我可以理解:1)active share是不考慮到底是哪一支股票被超/短配?只考慮對(duì)比benchmark 有多少%的股票被超/短配?那當(dāng)有一支股票被超配,必定會(huì)有另一只股票被短配?2)active risk包括factor的偏離 和 擇股擇時(shí)。但是factor的偏離不等于股票超/短配,可能會(huì)存在高相關(guān)型的股票被超/短配,但是并未導(dǎo)致factor偏離?并且由于這兩只股票本身存在于benchmark中,也不算擇股不同,所以沒有active risk,但有active share?
為什么market cap最不需要rebalance
thematic investment could be long-term and structural(such as shift to cloud computing ...), or short-term in nature. 意思是thematic investment 既可以是長(zhǎng)期結(jié)構(gòu)化的改變,或短期性質(zhì)的?這句話怎么理解,能舉個(gè)例子嗎?謝謝!
程寶問答