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| Originating Department: | Risk Management |
| Company Circular No: | LCH.Clearnet Ltd Circular No. 2748 |
| Service Circular No: | NYSE Liffe No. 763 |
| Date: | 08 December 2010 |
| 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 as marked in bold and italic on the attached document.
Tiered Volatility shifts have been introduced to Euribor (I) and Short Sterling (L) contracts.
The changes will be going live on Friday 10 December 2010 and will be reflected in margin calls on Monday 13 December 2010.
This circular supersedes circular number LCH.Clearnet Ltd/ 2743: LIFFE/ 762 dated 02 December 2010.
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.
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
Director and Head of Risk Management