借股中的rebate rate是指什么?支付給誰的錢?
put_option的convexity是正的話,為什么第一張圖最底下這一條,impact是decrease_convexity呢?
The annualized roll-down return difference is the 2.75% corporate bond realized return less the 1.80% UK gilt realized return, or 0.95%. roll-down return為什么包含counpon rate?The interpolated benchmark involves the use of the most liquid, on-the-run government bonds to derive a hypothetical 10-year UK gilt YTM. Because the UK gilt yield curve is upward sloping in this example, we can conclude that the relative roll-down return using an interpolated benchmark would be lower than the 0.95% difference in Question 1.可以理解,UK gilt yield curve is upward sloping ,所以10-year UK gilt YTM
精 R13的課后題3,bear flatten的話應(yīng)該買長賣短,請老師解釋下B選項和C選項。
positivebutterflyspread和positivebutterfly是兩回事嘛?positivebutterfly是下凹的spread為負(fù)值,,positivebutterflyspread為spread為正值圖形為上凸稱作negativebutterfly??
精 想問一下為什么收固定支浮動的swap會增加duration 這里沒太聽懂 我看有回答說是因為固定利率的duration 大 浮動利率duration小 所以收-支>0 但我仍無法理解 單純利率為什么能有久期 能否從數(shù)學(xué)角度解釋一下
老師好 這道題目可以講解一下思路嗎 為什么要算contract倍數(shù) 是可以fully immunization 的意思嗎? 還有就是為什么CDS spread 也就是 excess spread return 里的 spread 0 不用呢 謝謝
固收官網(wǎng)Shrewsbury case,這兩個duration statistics沒見過,請老師講解下
R12的example9第2問,為什么會有spread risk?
原版書R12的EXAMPLE 12 的第二問請老師講解下,effective duration of 5.28就算長期了?FTSE Pfandbrief Index這個請老師解釋下,我以為這個是對應(yīng)long-term的,因為 is a bond issued by German mortgage banks, collateralized by long-term assets, such as real estate or public sector loans.
老師 固收官網(wǎng)題 這個題目不懂 這個基金經(jīng)理配了MBS 不是說明認(rèn)為未來房地產(chǎn)會表現(xiàn)好嗎?另外 配 MBS 是認(rèn)為利率波動更低?as default correlations increase, the value of mezzanine tranches usually increases relative to the value of senior tranches 這句話也不懂 為什么?
第236頁這道例題感覺有點小問題,在算1%VaR時未把每月的期望收益作為基數(shù)進(jìn)行相加,難道不應(yīng)該是3%/12-2.33*6.708%來算出1%VaR嗎
此處為何直接用effective duration代替modified duration計算債券變動價格
bear flattening 和bull flattening的意思是?
請老師說下I spread 和swap spread 的公式?哪個減哪個
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