# Tagged Questions

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### Can you fully hedge an option in the presence of counterparty risk?

The derivation of the Black-Scholes model assumes no counterparty risk. Does the presence of counterparty risk invalidate the argument behind the model? EDIT: The question is about options in general,...
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### What happens if a custodian bank defaults?

This question follows up my answer and the related comment to this post and in general relates to counterparty risk. When you buy a financial asset, this asset goes in your account at your custodian ...
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### Do you know a good article on ETF's counterparty risk analysis?

I am at the moment considering investing into ETFs, but I am looking first to understand how these products really work. Indeed, it is my understanding that ETF can vary in terms of structure, thus ...
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The following is an excerpt from the dialogue in the book "Counterparty Risk and Funding - A Tale of Two Puzzles", regarding the statistics such as the volatility and correlation estimation under the ...
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### Why are netted positions more volatile?

According to John Gregory, "netted positions are inherently more volatile than their underlying gross positions". Given the context, I think he's talking about close-out netting and not payment ...
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### Physical or Real-world Probability Measure

For counterparty credit risk, in particular, for potential future exposure computation, people use the real-world probability measure to evolve the underlying risk factors. My question is that whether ...
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### Mathematical definitioln of Potential Future Exposure

I have come across a risk measure called "Potential Future Exposure" and I have not really understood the meaning of it. Knowing that this has to do with counterparty credit risk, I read different ...
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### Calculating the CVA of a Forward Contract

I am having trouble calculating the CVA of a forward contract. The question is presented below Question: There exists a long forwards position underlying on gold with 2 years remaining. The ...
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### How to calculate a the PFE for a Swaption?

How do you calculate the Potential Future Exposure (PFE) for a swaption? Do you incorporate the dynamics of implied volatility when you are running your simulations? Is there a standard way to ...