The London Stock Exchange’s RFQ feature will be reactivated on Monday 12 February 2024.
As a reminder, the LSE confirmed that an incident occurred on 19 October 2023. At 15:11 BST on Thursday 19 October, all instruments in Section 3 (of 3) of the LSE Order Book entered a standstill state. This affected all instruments except the FTSE 100 and FTSE 250 index components and the International Order Book securities.
It was determined that the outages were caused by a matching engine logic problem in Partition 3, as the mirror process did not take over as expected in case of a hardware problem. Further investigations identified the root cause of the problem to be related to the Request for Quotation (RFQ) functionality for Exchange Traded Products (ETP).
All LSE Order Book titles opened as normal on Friday 20 October. However, as a precautionary measure, while LSE’s detailed investigation into the root cause and remediation continued, the RFQ functionality was temporarily disabled in respect of all ETP securities.