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12 May 2025

Eurex

Minimum order size for Block Trades in off-book trading: Clarification to Eurex Circular 021/25 

Eurex Circular 041/25 Minimum order size for Block Trades in off-book trading: Clarification to Eurex Circular 021/25 

1.    Introduction

The Management Board of Eurex Deutschland took the following decision with effect from 1 June 2025:

  • Amendment of the Contract Specifications for Futures Contracts and Options Contracts at Eurex Deutschland (hereafter: “Contract Specifications”) according to the Attachment.

2.    Required action

All Trading Participants of Eurex Deutschland (“Eurex”) interested in client order aggregation to exceed minimum order sizes for Block Trades according to Eurex Circular 021/25 are affected by these changes. Please consider the changes as a clarification and update to the changes provided in Eurex Circular 021/25.
 
3.    Details of the initiative

On 14 March 2025, Eurex announced changes to the Exchange Rules of Eurex Deutschland (“Exchange Rules”) and to the Conditions for Trading at Eurex Deutschland (“Conditions for Trading”), specifically the deletion of Number 4.3 Paragraph 1 Sub-Paragraph 2 of the Conditions for Trading. This deletion allowed client order aggregation to achieve minimum order sizes for Block Trades and consecutive splitting in a post trade event effective on 17 March 2025. Target of these changes was to align the Conditions for Trading with the opinion of the European Securities and Markets Authority, which provides a general permit for an aggregation of client orders to be executed as one trade.
 
In order to protect client order-book participation and price discovery, as well as avoid larger shifts of client volumes to off-book due to this change, Eurex critically reviewed and reevaluated the reasons for this change. 

Eurex decided on the following actions: 

  • With effect from 1 June 2025, Eurex will amend the Contract Specifications to introduce a product-specific limitation to order aggregation of different clients to achieve minimum order sizes for Block Trades as in place before 17 March 2025 differentiating per product class (Futures and Options).
  • For Futures and Options products, Eurex will allow client order aggregation only in the following circumstances:
    a)    Aggregation of multiple orders of the same client;
    b)    Aggregation of orders of different clients, if the minimum number of contracts traded (Minimum Block Trade Size) is reached per client;
    c)    Aggregation of orders of a fund manager that relate to the managed funds.

Trading Participants conducting client order aggregation under these circumstances on request must be able to demonstrate that these requirements are met.  

  • Future product class specific allowances or limitations for this provision will be evaluated and added in the future.

Attachment:

  • Updated sections of the Contract Specifications for Futures Contracts and Options Contracts at Eurex Deutschland

Further information

Recipients: 

All Trading Participants of Eurex Deutschland and Vendors 

Target groups: 

Front Office/Trading, Middle + Backoffice, IT/System Administration, Auditing/Security Coordination 

Related circular: 

Eurex Circular 021/25

Contact: 

client.services@eurex.com

Web: 

www.eurex.com 

Authorized by: 

Jonas Ullmann  


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