OREANDA-NEWS. December 27, 2011. In accordance with the resolution adopted by the Derivatives Market Committee of MICEX-RTS, the RTS Clearing Center has adjusted the static risk parameters used on the MICEX Derivatives Market for the New Year holidays.

The following static risk parameters set by the RTS Clearing Center will be in effect for all groups of instruments of the MICEX Derivatives Market from December 29, 2011 through January 11, 2012:

Minimum allowed sizes of collateral (static risk parameter z) are set equal to the relevant collateral requirements calculated during the clearing session on December 27, 2011 multiplied by 1.5;

The haircut applied to the foreign currency accepted as collateral is set equal to the collateral requirement calculated as per the "Methodology of determining risk parameters of the FX market of MICEX" multiplied by 1.5;

Other static risk parameters remain unchanged.

From December 29, 2011 through January 11, 2012 clearing services will be rendered in accordance with the regular schedule and as provided for in the Clearing Rules. In this connection the RTS Clearing Center would like to bring to your attention that this may lead to the obligation to pay Variation Margin for the Clearing Participants.

Please note that in case of failure to pay the Variation Margin by 1.00 pm on the next trading day the entire position of the defaulting trading participant will be closed in order to pay off the outstanding Variation Margin amount in accordance with the "Methodology of calculating parameters for mandatory liquidation of positions".

The increased collateral requirements will become effective on December 28, 2011 during the clearing session on the MICEX Derivatives Market.