Search results

  1. Arka Bose

    Relationship between Jensen's Alpha and error term?

    I am a bit curious to know whether jensen's alpha has any relation to the error term in the security characteristic line? Security characteristic line regresses (Ri-Rf) against (Rm-Rf). In this case, if i regress, then (Ri-Rf) = α + β(Rm-Rf) + ei then, Ri= α + [Rf + β(Rm-Rf)] + ei then, Ri =...
  2. Arka Bose

    Linearity of Regression Equation

    Hi @Kaiser , Linearity in regression actually means B0, B2 etc (i.e the parameters) be linear. The variables may or may not be non linear as we can convert them to make a linear equation in variables
  3. Arka Bose

    different answers as in TVM i.e finding PV etc and CF's ?

    different answers as in TVM i.e finding PV etc and CF's ?
  4. Arka Bose

    Hey!

    Hey!
  5. Arka Bose

    Linearity of Regression Equation

    Hi Brian, The linearity that you are thing like 3^2 = 9 if 9 is the beta, that way to think is totally incorrect. basically, if u break down the Beta, it is Σ(x- xbar) (y-bar) / Σ(x-xbar)^2 This is in the form of Σ α (y-ybar) where α is just a number, or we can say weights of an observation...
  6. Arka Bose

    Page 14 #12.03d - PQ set - Hull, Chapter 13: Binomial Trees (Hull Text Q&A)

    Hi Jayanthi, What he did is basically the same thing you did, exp(0.2) is the up move factor and exp(-0.2)is the down move. You must have got this from Hull. However, as David said, it is delta hedge for one step only. If we do this hedging continiously, we will be close to our black scholes...
  7. Arka Bose

    as per IST its 6:30 pm

    as per IST its 6:30 pm
  8. Arka Bose

    Short convexity/ gamma

    Just thought I would like to share how you actually loose money regardless of the direction of the underlying when you are short gamma (or convexity) by shorting an option. ∆a be the underlying shares (or bonds whatever) we know convexity as ∆a+ 1/2 Г a^2 Thus, our net position will be ∆a -...
  9. Arka Bose

    Key rate hedging

    Thanks David, After reading the stuff many times from tuckman i got it. You can explain why did we go for the equations (due to the mismatch of hedges of the 5 year with the 30 year),what are the values actually calculated in the table, why others are 0 values (bonds trading at par of the same...
  10. Arka Bose

    Key rate hedging

    Hi David, It would have been useful if u would have provided a bit of depth in explaining this topic. I tried reading tuckman too, went over my head.
  11. Arka Bose

    P1.T4.318. Key rates exposures (Tuckman 3rd edition)

    thanks David for the excel sheet, i feel better now :cool:, and how the particular 30th year cash flow value actually increases the value of the bond, your excel sheet together with tuckmans curve figure made me understand. thanks again! :D
  12. Arka Bose

    P1.T4.318. Key rates exposures (Tuckman 3rd edition)

    Thanks, been hours since this thing is bugging in my head, hope to calm myself now :p:D
  13. Arka Bose

    P1.T4.318. Key rates exposures (Tuckman 3rd edition)

    David there wrote he will upload the spreadsheets in the paid members Q&A, so i was looking for that. I have actually not subscribed to the spreadsheets but i thought this one was for all, sorry!
  14. Arka Bose

    P1.T4.318. Key rates exposures (Tuckman 3rd edition)

    Are the spreadsheets available?
  15. Arka Bose

    Key rate duration Tuckman.

    Tuckman writes, 'Turning now to interpreting the results, the key-rate profile in Table 5.2 shows that the interest rate exposure of the 30-year C-STRIPS is equivalent to that of a long position in a 30-year par bond, a smaller, short position in a 10-year par bond, and even smaller short...
  16. Arka Bose

    Books helpful for FRM

    For derivatives, I dont know why but I found Sundaram, Das book to be more effective and intuitive than John C Hull.
  17. Arka Bose

    Career Advice

    Hi @DebbieM , so how did you manage? (I know from a post that u cleared part 1) Since you are from India, I am even keen to know the same. Thing is, I was doing CA and the current job i do (related to audit) has no role in FRM, i am perplexed at this point.
  18. Arka Bose

    Effect of Interest rates on options

    My bad, so it was options on the bond, i got it
  19. Arka Bose

    Effect of Interest rates on options

    Tuckman says that if we write an option, and the interest rates fall, then there will be loss to the option writer and gain to the option holder. But, rho (greeks) states otherwise, it says that call option holder gains if there is increase in the interest rates. I am confused here?
Top