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28 Feb 2024

Eurex Clearing

Eurex Clearing Prisma: Annual recalibration of Prisma initial margin floors effective 25 March 2024

Eurex Clearing Circular 014/24 Eurex Clearing Prisma: Annual recalibration of Prisma initial margin floors effective 25 March 2024

1.  Introduction

The stress period Value-at-Risk (VaR) is an integral part of Eurex Clearing’s Prisma methodology. To mitigate potential pro-cyclical behavior of initial margins, the stress period VaR serves as a prudent margin floor primarily relevant during low volatility market regimes. Model parameters comprise the selection of historical stress period dates for the risk scenarios and the quantile level on which the margin floor is evaluated and which is calibrated to match a long-term target VaR.

As part of regular annual review, Eurex Clearing recalibrated the stress period parameters used in the Prisma model for margining of Exchange Traded Derivatives (ETD) and Over-The-Counter Derivatives (OTC).

Effective 25 March 2024, for all liquidation groups, the annual recalibration will affect the following model parameters (see both tables in the Attachment):

  • 250 historical stress period dates
  • Stress period VaR quantile parameter.

The recalibrated parameters are attached to this circular and will be incorporated in the transparency enabler files on the effective date.

Production start: 25 March 2024

2.  Required action

There are no required actions or infrastructure changes for participants. The margin model parameter revision will be automatically reflected in the required initial margin amounts at the start of business on the production start date. All model parameters are distributed in the usual manner as part of the current Member reporting (reports CC221, CC202).

3.  Details of the initiative

Please refer to the tables in the Attachment which summarize the relevant Stress Period VaR parameters for all the liquidation groups.

Unless the context requires otherwise, terms used and not otherwise defined in this circular shall have the meaning ascribed to them in the Clearing Conditions or FCM Clearing Conditions of Eurex Clearing AG, as applicable. 

Attachment:

  • Relevant Stress Period VaR parameters for all liquidation groups


Further information

Recipients:

All Clearing Members, ISA Direct Clearing Members, Disclosed Direct Clients of Eurex Clearing AG and vendors, all FCM Clearing Members and other affected contractual parties

Target groups:

Front Office/Trading, Middle + Backoffice, IT/System Administration

Contact:

Your Clearing Key Account Manager or client.services@eurex.com

Web:

www.eurex.com/ec-en/

Authorized by:

Dmitrij Senko