Collateral Clearing and Documentation · Swaps Trading Guide
Variation margin responds to current exposure, while initial margin addresses potential exposure over a future closeout period. Both can create significant funding demands.
Different purposes for different amounts
Variation margin generally tracks changes in current exposure under the applicable arrangement. Initial margin provides a buffer against potential exposure during the period needed to manage a default. Applicability, calculation and segregation rules depend on the counterparties, product and legal framework. Initial margin is not simply the price paid to buy the swap.
Do not confuse cash movement with a second loss
If a swap loses $100,000 in value and that loss leads to a $100,000 collateral transfer, the transfer is not automatically an additional $100,000 economic trading loss. Accounting and settlement structures differ, but double counting the same exposure gives a misleading result. Funding costs and collateral remuneration remain separate considerations.
Estimate collateral capacity
Suppose eligible securities worth $1,000,000 receive a 5% haircut. Their recognized collateral value is $950,000. To support $1,000,000 of required value at that haircut, the illustrative market value needed is about $1,052,632. A haircut and a change in the securities’ market price can affect capacity at the same time.
Stress the timing of calls
A portfolio hedge can work economically and still require collateral before offsetting revenues arrive. Forecast cash by currency, deadline and source. Include intraday calls, collateral concentration limits and the possibility that funding becomes more expensive. Committed access and operational readiness matter more than an assumption that assets can always be sold immediately.
Try it yourself
A $600,000 collateral requirement is met with eligible assets subject to a 4% haircut. What market value is needed in this simplified calculation?
Show the worked answer
Divide $600,000 by 0.96. The required market value is $625,000, before any additional eligibility or concentration constraints.
Further reading
Educational material, not a recommendation to transact. Numerical examples are hypothetical and simplify contract terms. Access, documentation, collateral and regulatory requirements depend on the product, jurisdiction and counterparties.
