November 4th, 2006, 9:51 pm
They don't have to reference IR derivatives - people trade these on commodity derivatives as well, and even euqity derivatives. Also, if you have multiple diverse contracts with the same counterparty, and that counterparty defaults, you need to net the marks (non-trivial) of all these contracts, and if the net is in the money, then that's the notional of your credit protection; but if the net is out of the money, then you still do (unilateral). Given these complexities, practically, you'll need to use Monte Carlo.But for a single IRS, you can consider a series of swaptions referencing the IRS, expiring every month. Add up their pv, and you will get a theoretical mark for your C-CDS. Actually, they trade at a premium to this mark.On Bloomberg, take a look at ICVA<go> (ICAP), it has some quotes (needs permissioning...) (no, I'm not affiliated...)