老師,不太明白價(jià)格加權(quán)的方法中,為什么每只股票的數(shù)量是一樣的?按照權(quán)重=某只股票的價(jià)格/總成分股的股價(jià),得出來的權(quán)重是不同的。這個(gè)權(quán)重不同與股票數(shù)量是什么關(guān)系?
精 官網(wǎng)題,Basis risk results from using a hedging instrument that is imperfectly matched to the investment being hedged. Basis risk can arise when the underlying securities pay dividends, because the futures contract tracks only the price of the underlying index. Stock splits do not affect investment performance comparisons。basis risk如何理解,期貨與現(xiàn)貨之間的價(jià)格變動(dòng)差異?
老師,你好,關(guān)于原版書reading 18的中的long/short strategy,這個(gè)策略對于active risk是如何影響的,是上升還是下降,能否解釋下?另外,原版書是否有相關(guān)的解釋?
精 權(quán)益課后題reading 18 第3題:答案中解釋因?yàn)閒und 1 包含的是小盤股,但是題目中是說 他買的股票數(shù)目少。我認(rèn)為答案應(yīng)該選C fund 3,基金規(guī)模小,但是卻擁有眾多數(shù)目的股票,會導(dǎo)致交易成本增加。
為什么選擇A,deep value我理解應(yīng)該是bottom up的方法吧
老師您好,我想問幾個(gè)小問題, 1.momentum是成長型還是價(jià)值型股票的指數(shù)呢?2. 再確認(rèn)一下, 價(jià)值型股票的return是比成長型股票的return高, 對嗎?3. earning growth大的, 是growth型股票對嗎?謝謝
2016Q3-B, 這道題沒看太懂。 如何從return-based 和 holding-based看large-cap style 和growth style????從weighting 的變化來看?原因是啥??? 洪老師講的不清不楚的。。。。。。。
第24章課后題第5題。題目中的“portfolio characteristics at odds with its declared style”,意思應(yīng)該是投資組合的風(fēng)格與基金經(jīng)理自認(rèn)的風(fēng)格發(fā)生了偏差,也就是所謂的風(fēng)格飄移(style drift)。我個(gè)人感覺選項(xiàng)A(Furlings)應(yīng)該是正確選項(xiàng)。原因是Furlings基金所偏向的風(fēng)格中,有一條是選擇“strong growth potential”(增長潛力較大)的股票,但就表2數(shù)據(jù)來看,F(xiàn)urling基金的平均EPS增速卻低于指數(shù)。 然而,正確答案是選項(xiàng)C(Tokra)。Tokra基金以市凈率、最近12個(gè)月股價(jià)漲幅、資產(chǎn)回報(bào)率(ROA)作為指標(biāo),分別顯示出價(jià)值型/成長型、動(dòng)量(momentum)、盈利能力(profitability)的風(fēng)格。根據(jù)表2數(shù)據(jù),Tokra基金的平均價(jià)格動(dòng)量和凈利潤率高于市場平均值,說明這兩點(diǎn)并沒有偏離基金經(jīng)理自認(rèn)的風(fēng)格。市盈率和市凈率高于標(biāo)桿指數(shù),這體現(xiàn)出基金可能是偏向于成長型風(fēng)格的。而答案中稱,“the low level of sector deviation tolerated within the strategy weakens that explanation(這一策略中較低水準(zhǔn)的板塊偏差容忍度,削弱了(成長型風(fēng)格)的解釋)”。這應(yīng)該如何理解呢?而選項(xiàng)A又為何錯(cuò)誤(為何Furlings基金被認(rèn)為沒有出現(xiàn)風(fēng)格飄移)?謝謝!
百題cae 6 的第2題,為什么C 選項(xiàng)體現(xiàn)了growth trap?為什么B選項(xiàng)體現(xiàn)了value trap?
第14題 關(guān)于statement 1 既然 Gross exposure = |Long positions| + |Short positions| 如果long150%,short50%,Gross exposure =200%,那就不是老師說的100%了 所以不管positions如何,Gross exposure肯定都要大于100%,statement 1不就是錯(cuò)誤的嗎?
請問rewarded risk factors是什么意思?
第18題,AZ Industrial is trading at a high P/B relative to the industry average, which is contrary to relative value and suggests that the relative value approach was not the basis for Sardar’s buy recommendation. 是不是意味著P/B ratio 越低越好?
請問一下在Monongahela Ap里面,alpha skills ,position sizing, rewarded factor weightings有什么區(qū)別?老師能不能具體舉一個(gè)例子。
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?yàn)?portfolio beta 偏離了 benchmark 的關(guān)係嗎?
老師你好,reading10講到limitation of historical estimates的時(shí)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(gè)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(diǎn)沒搞清楚。
程寶問答