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CDS pricer

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CDS pricer



06 Nov 2008 (Updated )

This short routine calculates the mark-to-market price of a credit default swap.

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This file has been updated as of 12 March. I believe it is now more accurate and more flexible, but it's still not the real thing. JPMorgan's source code has been made available at, I have not yet compared my implementation with theirs.

This program is still based on the paper by O'Kane and Turnbull (available at ). This routine prices a CDS, taking current market spreads to bootstrap survival probabilities, which imply a "risky present value". Contract details (initial spread, end date) then give the theoretical market price of the contract. The results are very similar to Bloomberg's CDSW page in simple tests.

The function requires the Financial Toolbox to manage dates, but if you are willing to sacrifice some accuracy this can easily be worked around.

Perhaps I should state that this is an analytical tool, and I am not responsible for any investment decisions made using it.

Required Products Financial Toolbox
MATLAB release MATLAB 7.4 (R2007a)
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13 Mar 2009 1.1

* Cleaned up code.
* Function can now report "risky present value" as well as mark-to-market price.
* Accuracy improved by better management of dates.

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