Planned changes in the securities and FX markets system

Please be informed about the planned changes in the Securities and FX markets system that take affect starting from September 14, 2026.

SECURITIES MARKET

• Execution of Open-Date REPO Trades with Compounding in Anonymous Trading Mode
• Additional Bond Attributes
• New versions of ASTS Bridge broker interface - Broker59 and BrokerRisk59
• Changes in trading and clearing reports
• Support for New Settlement Mechanisms for Securities Lending Agreements and CCP REPO Trades with CMO
• New System Messages and Error Codes

The full list of changes is given in the attached file. The list of changes will be updated.

The T1 test environment has been updated to version 2026-3 and is available for connection.