We’d like to remind you that the SIDC Governance group has approved a temporary corrective measure to optimise XBID system efficiency and maintain stability.
This corrective measure trial is designed to decrease processing overhead and improve response times during high-demand trading windows.
Trial Details
Effective Date: Monday 1 December 2025
Trial Duration: Monday 1 December 2025 – Sunday 1 February 2026
Change: Order Book Depth reduction from 100 to 50 price levels
Evaluation Point: End of January 2026
This reduction will limit visibility to deeper price levels in the order book. We anticipate minimal impact on typical trading workflows, as the majority of market activity concentrates within the top 50 price levels. However, traders relying on deeper visibility for spread analysis or large-order execution strategies may need to adjust their approach.
The SIDC Governance group will evaluate the trial results during the final week of January 2026. A decision regarding whether this measure will be discontinued, or extended, or if any other adjustments to order book depth should take place, will be communicated by the SIDC Governance accordingly.