Search results

  1. afterworkguinness

    Expected loss and credit var

    Hi Gyilmaz, I went back and double checked the notes and can see that, as you said, CVaR= Unexpected Loss= Loss at (alpha or significance level) - Expected Loss. I guess it was a typo in the practice question answers. Given that CVaR = UL - EL, I'm assuming it's incorrect / imprecise to state...
  2. afterworkguinness

    Expected loss and credit var

    Sorry to be that guy who keeps posting questions, this really is by far the best resource out there. The answer to practice question 305.3 for Malz says the following statement is true: CVaR (alpha) = Unexpected loss (alpha), where alpha is a significance or confidence level Q: if CVaR is...
  3. afterworkguinness

    Asset & default correlation (Malz, Portfolio Credit Risk chapter)

    HI @ShaktiRathore , can you walk me through your steps? Thanks
  4. afterworkguinness

    Bootstrapping default rates from CDS spreads

    Hi, The equation Malz gives to set the PV of expected value of both legs of a CDS equal to eachother is below. Can someone offer an explain as to why we divide by 4*10^4 ? Prior to this, when Malz introduces just the portion to calculate the PV of the expected value of the fixed leg (without...
  5. afterworkguinness

    Future value of debt in Merton model

    Thanks for clearing that up.
  6. afterworkguinness

    Future value of debt in Merton model

    Hi, I don't understand the way Malz states the future value of the debt; it seems counter-intuitive and contrary to what I read in de Sevigny and Stulz. We know the Value of the debt can be modeled as a simultaneous position in a risk-less bond with face value of the risky debt discounted using...
  7. afterworkguinness

    CDS Compression - why?

    @sneakyplacebo , I'm also a bit confused about CDS compression. The below description from ISDA along with ShatkiRathore's examples have helped me out (emphasis is mine) Not sure how this has an effect on the level of counterparty risk though.
  8. afterworkguinness

    Portfolio based?

    Hi, what makes a model (ie: credit risk +) portfolio based ? What are the alternatives to portfolio based ?
  9. afterworkguinness

    Impact of interest rates on value of risky bonds

    Hi, Can you expand a bit further on these relationships laid out in the notes on Stulz ? Thanks Increase in the positive correlation between firm value and interest rate shocks (what shocks ?) causes a decrease in debt value. Increase in rate volatility and decimal level of interest rates...
  10. afterworkguinness

    If you're talking about Bionic Turtle, I believe it's 1 year, if you're talking about the FRM...

    If you're talking about Bionic Turtle, I believe it's 1 year, if you're talking about the FRM exam, then your registration is only valid for the exam date you registered for. You can defer the exam to the next exam date for a USD $100 fee, they only allow you to defer once, you cannot defer a...
  11. afterworkguinness

    Risk neutral vs real world

    Thanks David, I understand it now. Much appreciated.
  12. afterworkguinness

    Risk neutral vs real world

    Thanks for the detailed answer David. So when investors are risk neutral, risk neutral probabilities = real world probabilities and they only differ if the investor is risk averse? I'm having difficulty understanding why, in general, real world probabilities are 50/50 but in a risk neutral...
  13. afterworkguinness

    Time dependent volatility interest rate models

    Thanks for the detailed reply; makes sense now. One more quick question, what does Tuckman mean by a "factor structure"; from the context I'm assuming he's talking about the term structure of rates. Am I correct ?
  14. afterworkguinness

    Time dependent volatility interest rate models

    Hi, I'm having trouble understanding the arguments against time dependent volatility models to value and hedge fixed income instruments. Tuckman says: "The downward-sloping factor structure and term structure of volatility in mean reverting models capture the behavior of interest rate...
  15. afterworkguinness

    Confusion around Ho-Lee Model

    I'm having trouble with the Ho-Lee model for short rates and differentiating between how to find the values for the free parameter λ versus using the model to predict future rates. The Ho-Lee model for each step in a binomial tree: λtdt+σ sqrt(dt) I've read that to set the free parameter at...
  16. afterworkguinness

    Risk neutral vs real world

    Hi, In Tuckman chapter 8 (risk premium subsection) he calculates the price of a two year zero using the up and down probabilities of 50% and says this is how the zero would be priced by risk neutral investors. Are these not the real world probabilities? Thanks
  17. afterworkguinness

    PCA Hedging

    @ami44 thanks very much.
  18. afterworkguinness

    Tuckman Principal Component Analysis

    Hi @ami44, I must have missed that. Needed more PCs to explain the the variance of the very short term makes sense. Thanks so much.
Top