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  1. David Harper CFA FRM

    CVA Questions

    Hi @nansverma I would characterize CVA as the mark-to-market (MTM) price of counterparty risk. Without obsessing over particulars, CVA is given by CVA = LGD*EE(profile)*Discount_function*PD, so you have a series of future-dated credit exposures that are discounted to a present value (and the...
  2. David Harper CFA FRM

    Exam Feedback May 2019 Part 2 Exam Feedback

    @Amarnadh D thanks but what same answer? I have a call into GARP (also in regard to the unconditional PD question) about this. If the assumption was 98% and 252 trading days then the correct answer is neither the simple average of worst five or six but rather, per my post above, the correct...
  3. David Harper CFA FRM

    Exam Feedback May 2019 Part 2 Exam Feedback

    @kylian.mbappe Thank you, then that's looking for a conditional probability, "given" refers to conditional, although we had asked GARP to use the word "conditional" to avoid any confusion with the joint (aka, unconditional) probability. Is it so hard to use the word "conditional" when...
  4. David Harper CFA FRM

    Exam Feedback May 2019 Part 2 Exam Feedback

    Hi @AHoekstra @AnnaM @amit.m.sharma @a_ishrat1973 @Anibal86 The hazard rate is an instantaneous conditional PD. If the question gave the hazard rate, λ = 0.12 and if it is constant (see below), then: Each year's conditional PD is 11.31% which is also the Year 1 cumulative/unconditional PD = 1 -...
  5. David Harper CFA FRM

    Exam Feedback May 2019 Part 2 Exam Feedback

    @amit.m.sharma it looks like you were stuck for good reason: the 98.0% here is neither the average of worst 5 or 6. You didn't provide the 6th worst, but let's say it is 2.20% such that the six worst are: -2.8%, -2.6%, -2.5%, -2.4%, -2.3% and -2.2% Then the 98.0% ES is the average of the 2.0%...
  6. David Harper CFA FRM

    Exam Feedback May 2019 Part 2 Exam Feedback

    Thank you @nikic really appreciated, were the choices only average of worst 5 or 6? Because I want to contact GARP if they did this incorrectly. If it was 98% with 252 Trading days, it seems unlikely to me they offered the correct solution ....
  7. David Harper CFA FRM

    Exam Feedback May 2019 Part 2 Exam Feedback

    @nikic regarding ES, we do not "consider losses beyond the VaR threshold." Averaging losses is called a conditional VaR (or less often, tail conditional expectation, TCE) which has never been assigned and is ambiguous when the VaR is ambiguous. We use expected shortfall (ES) which is never...
  8. David Harper CFA FRM

    Absence of Discounting Method in the paper

    Hi @DunderMifflin Such instances should only be observed in older practice papers, the 2019 paper and the exam itself should not suffer any imprecision (i.e., we have given plenty of feedback to GARP about the need for compound frequency specification). In any case, practice papers prior to 2018...
  9. David Harper CFA FRM

    IMPORTANT! PLEASE READ: Publishing Process for 2019

    @Jaskarn I do sincerely apologize. Actually, I immediately deleted my post, realizing that I probably did misinterpret. It's a stressful time for all of us.
  10. David Harper CFA FRM

    Expected geometric return?

    Hi @sparty I wonder if you refer to the sheet below (see snapshot)? I broke off the sheet for you here https://www.dropbox.com/s/6cl645mg6ekz611/051319-realized-return.xlsx?dl=0 ... located in this learning XLS at https://learn.bionicturtle.com/topic/hull-chapters-13-15-19/ ... please note...
  11. David Harper CFA FRM

    FAQ Before Exam Last minute Advice

    @DunderMifflin where did you get our mocks if you aren't a paying subscriber, do you mind me asking?
  12. David Harper CFA FRM

    Default Rate Methodology

    Hi SB (@sitingbull ) Well I read the image-text with header "2.1 Forward probability of default" as fully consistent with the conventional definition of a conditional probability. The formula, too. The denominator, n(ik)(t(k)), "denotes the number of borrows who survived" the period immediately...
  13. David Harper CFA FRM

    Forward Rates Notation

    Hi @kausthub It's a good question, I have the benefit (curse? ;)) of having much opportunity to think about this ... first, we might distinguish between spreadsheet implementation, which of can vary, and textual notation, which (in my opinion) should aspire to consistency, especially for exam...
  14. David Harper CFA FRM

    GARP.FRM.PQ.P2 2016 GARP PQ - Question 5 - CDS (garp16-p2-5)

    @Tereza See (eg) https://forum.bionicturtle.com/threads/p2-t6-208-credit-derivatives-credit-default-swap-topic-review.6204/ which I think will be found in the T6 Malz reading as that's where CDS valuation would be found (credit risk).
  15. David Harper CFA FRM

    P2.T6.908. Credit exposure metrics (expected exposure and potential future exposure) (Gregory Ch.7)

    Hi @nikic I think that's clever (btw, I think you mean 2.33 for 99.0% approximation whereas your formula reflects a 95.0% VaR approximation and so uses 1.65): the distribution is nearly normal so you've approximated the 0.95 quantile with normal parameters. (on a really minor note, I'm thinking...
  16. David Harper CFA FRM

    P2.T6.907. Collateral and the margin period of risk (Gregory Ch.6)

    Hi @nikic No, the MRP formula featured in 907.3 above would never realistically be tested (the LO verb is "Explain" not "Compute" or "Calculate"), which is precisely why the formula is included. But the calculation isn't really the point. Question 907.3 happens to be my designed question for the...
  17. David Harper CFA FRM

    Errors Found in Study Materials P2.T5. Market Risk (OLD thread)

    Hi @aangermeyer Yes, you are absolutely correct. Thank you for identifying these typos (cc @Nicole Seaman ). The solutions of 0.766371 and 0.886233 do reflect the denominators /1.142 and /1.062 but the text is incorrect. Really appreciate your attention to detail here. Thank you!
  18. David Harper CFA FRM

    Default Rate Methodology

    Hi @sitingbull No, I don't think we (the FRM) uses such a metric. My hunch is that's an impression created by the Giacomo DeLaurentis reading (is that the author?), which is error-prone and imprecise. He has a measure called the "forward PD" which is what should be called the conditional...
  19. David Harper CFA FRM

    Valuing plain vanilla swap

    Hi @kausthub I moved your (very popular) question to this thread; please see above, including above at https://forum.bionicturtle.com/threads/valuing-plain-vanilla-swap.6382/post-20264 where I created a tiny XLS illustration. Thanks!
  20. David Harper CFA FRM

    GARP.FRM.PQ.P2 Important Difference in Information Ratio Formula (garp16-p2-72)

    Hi @RushilChulani GARP 2016 P2.Q72 above is looking for a two-sided rejection regions when it asks "how many stocks have an alpha greater than 4.0% or less than 4.0%." Under the (mistaken, I think) original version of the question, the standard deviation of the alpha was meant to be about σ(α)...
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