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Enron Mail |
Ted,
We have the first running version of VaR model for the MG positions. Many thanks to Tanya and Anjam for taking lead in this effort. We had also great help from Cantekin and Kirstee. We want to validate some inputs before releasing the number. Specifically, I want to make sure that both London and Houston work with the same position numbers every day to avoid confusion. A few comments. 1. We plan to set up the models to run VaR concurrently in Houston (Cantekin) and London (Kirstee) with the same inputs. The reason to do it this way is that we may have to respond quickly to multiple inquiries in both locations. (Cantekin and Kirstee, please stay in touch and synchronize the inputs ). 2. It is critical that we run the model daily and receive the updated positions and prices on a regular basis. 3. We shall continue work in Houston to improve the model. Two critical areas: a. VaR model, by its nature, does not capture one big risk MG has in its portfolios. This is the liquidity risk resulting from different cash consequences of the hedges and the underlying positions. b. We should go through due diligence to validate the process generating the position numbers (i.e. look into the details of specific transactions). From what I know, MG has a fairly rudimentary risk management system and I am not quite sure how they generate option prices (and deltas). They get some option prices by calling brokers. 4. I think the current VaR is within 80-85% of the true number (assuming the inputs are right). But, as I have said, VaR does not capture all the risks that we have to worry about. Vince
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