Template:Csa credit support amount calculation: Difference between revisions

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===Calculating your {{csaprov|Credit Support Amount}}===
===Calculating your {{csaprov|Credit Support Amount}}===
How the {{csaprov|IA}} contributes to the {{csaprov|Credit Support Amount}} — being the total amount a {{csaprov|Transferor}} actually has to hand over to the {{csaprov|Transferee}} can be mind-boggling. It pans out like for a given counterparty like so:
How the {{csaprov|IA}} contributes to the {{csaprov|Credit Support Amount}} — being the total amount a {{csaprov|Transferor}} actually has to hand over to the {{csaprov|Transferee}} can be mind-boggling. It pans out like for a given counterparty like so:
*First, take the {{csaprov|Transferee}}’s {{csaprov|Exposure}} - the net [[mark-to-market]] value the {{csaprov|Transferor}} would owe the {{csaprov|Transferee}} under all outstanding {{isdaprov|Transactions}}  if they were [[closed out]] (not counting, of course, the [[CSA]] itself). Call this '''E'''.
#The {{csaprov|Transferee}}’s {{csaprov|Exposure}} - the net [[mark-to-market]] value the {{csaprov|Transferor}} would owe the {{csaprov|Transferee}} under all outstanding {{isdaprov|Transactions}}  if they were [[closed out]] (not counting, of course, the [[CSA]] itself). Call this '''E'''.
*Next, add to E the total {{csaprov|Independent Amount}} {{csaprov|Transferor}} is required to give the {{csaprov|Transferee}}. Call this '''IA<sub>t</sub>'''. E + IA<sub>t</sub> is the total amount you have to hand over as {{csaprov|Credit Support}} if it weren't for ...
#Add to E the total {{csaprov|Independent Amount}} {{csaprov|Transferor}} is required to give the {{csaprov|Transferee}}. Call this '''IA<sub>t</sub>'''. <br>''E + IA<sub>t</sub> is the total amount {{csaprov|Transferor}} would have to hand if it weren’t for ...
*Any {{csaprov|Independent Amount}} the ''other'' dude owes ''you''. This we will call '''IA<sub>r</sub>'''. There’s something faintly absurd both parties exchanging {{csaprov|Independent Amounts}} by [[title transfer]] — they net off against each other — but that’s as may be. Stupider things have happened<ref>[[SFTR]] disclosure, for example.</ref>.  
#Any {{csaprov|Independent Amount}} the {{csaprov|Transferee}} has to pay the {{csaprov|Transferor}}. Call this '''IA<sub>r</sub>'''.<br>''There’s something faintly absurd both parties exchanging {{csaprov|Independent Amounts}} by [[title transfer]] — they net off against each other — but that’s as may be. Stupider things have happened<ref>[[SFTR]] disclosure, for example.</ref>.''
*Any {{csaprov|Threshold}} that applies to the {{csaprov|Transferor}} - being the minimum MTM amount at which it must pony up variation margin in the first place.<br />
#Any {{csaprov|Threshold}} that applies to the {{csaprov|Transferor}} - being the minimum MTM amount at which it must pony up variation margin in the first place.<br />
 
This leaves you with a formula as follows:
This leaves you with a formula as follows:
:''Max[0, E + IA<sub>t</sub> - (IA<sub>r</sub> + Threshold.)''
:''Max[0, E + IA<sub>t</sub> - (IA<sub>r</sub> + Threshold.)''