Quote from scriabinop23:
You just said the banks selling CDS on CDOs, ie AIG, likely brought it down. By real estate, I meant CDS contracts on CDO and agencies. Clarify?
Quote from sjfan:
If you are long a contract (which means you sold protection and are long premium - meaning getting the income) and the contract went from 100bps to 1000bps, you are crushed... you now owe your counterparty 900bps x DV01 (say, around 3 for a then 5Y contract). So you are out 27%.... nice bull market you got there, being down 27%.
The trading convention is set up that it's in the same direction as normal bond trading -> long CDS means long credit (analogous to owning the bond) and therefore a spread widening is bad for you.
Quote from simpleton:
But if I'm long a credit then I'm long risk and have sold CDS.
Quote from sjfan:
Wait - this is right. You've sold [protection on the] CDS.... I think there's where the terminology is getting flipped. We are used to saying buy as in buy protection, not buy as in long. If buy == going long, then you've sold protection. I think the original poster thought long means he makes money when spreads widen, which isn't true - that's buy protection or going short. Agreed?
Quote from sjfan:
The banks bought protection on the CDS on CDO. AIG was a taker of risk. The banks, for the most part and especially in cases like this, tries to hedge those risks by selling protection down the line.
But that's all very complicated.
CDS on CDO is a very very small part of the market.

Quote from Lucky:
Would it just be calling up AIG and asking for some insurance?
Really, I don't think we're going to come across this sort of info elsewhere...
Quote from Lucky:
Could you maybe provide an example of a bank selling protection down the line?
Would it just be calling up AIG and asking for some insurance?
Really, I don't think we're going to come across this sort of info elsewhere...