nr 107 - Intraday Margining of Central Counterparties: EU Practice and a Theoretical Evaluation of Benefits and Costs

DNB Working Papers
Publicatiedatum 2 augustus 2006
Intraday margin is a generally accepted risk management tool of central counterparties to cover increased risk exposure during the day. Central counterparties may call for intraday margin on a routine basis, but also in case of extreme price volatility or large changes in positions of clearing members. An increase in the use of a routine intraday margin call can be seen at central counterparties in the EU. Three central counterparties have recently introduced a routine intraday margin call and two central counterparties intend to do so. This article explores the concept of intraday margin and its role within the risk management framework of the central counterparty. In addition, an overview is given of the benefits, cost and side effects of intraday margining to the central counterparty, its clearing members and the capital market in general. Finally, the article examines the practice of intraday margining of central counterparties in the EU and the differences in intraday margining policies. Keywords: Clearinghouse, Central counterparty, Replacement cost risk, Intraday margin. JEL classification: G29, G30