January 6th, 2011, 10:46 pm
It depends on the way the CDS contract is written. If the Contract references a particular bond, that only that one must be delivered. Often it might say something like only senior debt, in which case any outstanding senior bond can be delivered. You'd have to look at ISDA documentation to understand what is deliverable under a particular contract. Once you figure that out, valuing the CTD should be pretty easy.