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| Originating Department: | Risk Management |
| Company Circular No: | LCH.Clearnet Ltd Circular No. 2863 |
| Service Circular No: | NYSE Liffe No. 784 |
| Date: | 17 May 2011 |
| To: | All NYSE Liffe Clearing Members |
NYSE Liffe Margin Rate Changes
LCH.Clearnet Ltd has, after consultation with NYSE Liffe, revised the London SPAN parameters.
Changes have been made to NYSE Liffe Indices and Commodities contracts and new NYSE Liffe equities have been introduced.
The new contracts will be going live on Wednesday 18 May 2011 and will be reflected in margin calls on Thursday 19 May 2011. The changes to Indices and Commodities will be going live on Friday 20 May 2011 and will be reflected in margin calls on Monday 23 May 2011.
This circular supersedes circular number LCH.Clearnet Ltd. 2854; LIFFE/ 783 dated 10 May 2011.
Details of the current London SPAN Parameters, for all NYSE Liffe contracts, can be found on the LCH.Clearnet website (www.lchclearnet.com) under Risk Management > Ltd > Margin rate circulars.
Please click on the NYSE Liffe Margin Rate Spreadsheet for the revised SPAN parameters marked in bold and italic.
Members seeking further information in relation to this circular should contact one of the following:
| LCH.Clearnet Ltd | Risk Operations | 020 7426 7520 |
| NYSE Liffe | NYSE Liffe Clearing | 020 7379 2824 |
Christopher Jones
Executive Director, Head of Risk Management