HONG KONG: SEOCH Announces Amendments to the Clearing Rules and Procedures

Monday June 9 2025

On 6^th June 2025, SEHK Options Clearing House Limited (SEOCH) announced that the Securities and Futures Commission (SFC) has approved amendments to the Rules and the Procedures in relation to the implementation of the enhancement to Intra-Day Variation Adjustment/Margin call.

The following are amendments to the Rules and the Procedures in relation to the implementation of the enhancement to Intra-Day Variation Adjustment/Margin call.

Rule Update – Options Clearing Rules of SEOCH

Special Block Trade Margin 615A.

(1) If in the opinion of SEOCH or the Exchange, the executed price of a Block Trade is not fair and reasonable or a significant deviation exists between the executed price and the prevailing market price or between the executed price and the theoretical price determined by SEOCH, SEOCH may, within 30 minutes after the Block Trade is executed or after a trade adjustment request in respect of such Block Trade is submitted, demand a Special Block Trade Margin from the relevant SEOCH Participant.

Rule Update – Operational Clearing Procedures for Options Trading Exchange Participants of SEOCH

Margin Requirement – Intra-Day Margin

SEOCH has full discretion to call for Intra-day Margin from all SEOCH Participants and/or selected SEOCH Participants. Without prejudice to the foregoing, SEOCH will, unless in exceptional circumstances as determined by SEOCH, demand Intra-day Margin from one or more SEOCH Participants on each trading day according to such schedule as may be prescribed by SEOCH and published on the HKEX website from time to time.

The amendments will come into effect on Monday, 23^rd June 2025.

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