金程問(wèn)答R18,PPT第119頁(yè),怎么理解active risk is affected by the degree of cross correlation, but Active Share is not.
算hhi的時(shí)候?yàn)槭裁床凰闵蟘ash, fixed income investment?從哪可以看出只考慮abc,xyz來(lái)計(jì)算hhi?
老師,我這里有個(gè)疑問(wèn),根據(jù)答案中的公式所算出的alpha,和用書(shū)上的那條source of active return的公式算出的alpha不一樣,所以想問(wèn)下,兩條公式所代表的alpha是不是同一個(gè)?
第七題為什么用sp500的index乘以mini的multiplier 這不兩個(gè)東西嘛怎么能乘
老師,答案里的算法是什么意思?數(shù)據(jù)哪來(lái)的?謝謝
passive中factor-based strategy是怎么track benchmark的?
第2題的reason 3,我個(gè)人對(duì)"fully express short ideas"有些疑惑,我覺(jué)得這個(gè)表述在long/short中是有點(diǎn)問(wèn)題的,因?yàn)檫@個(gè)策略的short部分是通過(guò)做空高估股票賺取alpha的,但是投資者并沒(méi)有對(duì)beta產(chǎn)生什么觀(guān)點(diǎn)進(jìn)而來(lái)通過(guò)beta獲利,相反long/short把beta都對(duì)沖掉了,這種情況為什么可以說(shuō)是fully呢,我個(gè)人感覺(jué)是partially,感謝老師解答
比例低于10%,能達(dá)到效果嗎?engagement中強(qiáng)調(diào)是大股東傾向于去做
Optimization和smart beta的區(qū)別是不是前者是pure indexing后者是enhanced indexing?
L3V3 P202. I'd like to ask something about the tracking error and transaction cost. (1) If the tracking error measures the divergence in portfolio price and benchmark price, does that mean whatever causes the price difference could affect the tracking error? (2) In the diagram, why is the "tracking error gross of trading cost" continuously declining when both tracking error and transaction cost are increasing? (3) How to guarantee a convex U-shape but not a concave U-shape? If the first security purchased for the portfolio is illiquid, then transaction cost dominates and tracking error should increase.
Q7,在現(xiàn)實(shí)生活中 期貨產(chǎn)品的價(jià)格是有multiple的么?股票現(xiàn)貨的話(huà),EPS*multiple=股價(jià),也就是股價(jià)里包含了multiple。期貨是不一樣么?
老師:為什么用一個(gè)相關(guān)性更高的股票replace an existing security會(huì)使組合的風(fēng)險(xiǎn)升高?(難道不應(yīng)該使active risk 更小嗎?沖刺筆記中說(shuō)道:減持一只銀行股而增持另一只銀行股可能比減持一只銀行股而增持一只信息股的active risk更小。);現(xiàn)金與組合里股票的相關(guān)性低,add cash為什么使active risk 變高?
上午題equity部分第128頁(yè)CASE的B問(wèn),能否再梳理一下?另外return-basedreason不是應(yīng)該看return來(lái)源是哪些再看是什么風(fēng)格嗎?為什么是看holdingweight?
Q32: 請(qǐng)問(wèn)這個(gè)為什么選A? 完全沒(méi)看懂解釋。為什么不選Capitalization weighted?
reading16視頻里面的關(guān)于pricedweighted的方法中計(jì)算分母X是不是算錯(cuò)了?不應(yīng)該是2.33么?
程寶問(wèn)答