The London Stock Exchange (LSE) resumed continuous trading at 14.00 after member connectivity issues forced it to suspend all order-driven execution for three-and-a-half hours.
At 09.32 the exchange reported issues on two of its trading gateways, which members use to connect to the exchange’s order book. Some members experienced intermittent connectivity issues and were unable to trade.
At 10.30 the LSE placed all order-driven securities into an auction call period, thus allowing members to amend or delete orders entered prior to being disconnected. A statement on the LSE’s Incident Communication website added, “The length of this [auction call] period has not yet been decided however a minimum of 30 minutes notice will be provided ahead of the scheduled uncrossing time. Indicative uncrossing prices and volumes will be reinvoked for this period.”
This is the second outage the LSE has experienced this month. On 9 November, a glitch in the exchange’s TradElect trading engine and Infolect information system impacted a twelfth of all instruments, including large-cap stocks and exchange-traded funds.