Which LSE trading system is used for less liquid shares that are not traded on SETS?

Which LSE trading system is used for less liquid shares that are not traded on SETS?

• A. Setsqx
• B. Sets
• C. SeaQ
• D. Orb

Answer: (A)

In the London Stock Exchange, liquidity drives which trading system is used. For shares that are not highly liquid and that aren’t traded on SETS, a hybrid venue called SETSqx handles the trading. SETSqx combines elements of an electronic order book with market-maker quotes, providing price discovery and execution when there isn’t enough depth in the SETS book. This setup is specifically designed to support less liquid securities by ensuring there are quotes and a mechanism to execute trades even if there isn’t a large number of resting orders. The other systems are oriented differently: SETS is the fully electronic order book for the most liquid stocks; Orb is a crossing facility for large blocks, and SEAQ/SeaQ is the older framework that previously handled non-SETS trading but has been superseded for many securities. So, for less liquid shares not traded on SETS, SETSqx is the appropriate trading system.

In the London Stock Exchange, liquidity drives which trading system is used. For shares that are not highly liquid and that aren’t traded on SETS, a hybrid venue called SETSqx handles the trading. SETSqx combines elements of an electronic order book with market-maker quotes, providing price discovery and execution when there isn’t enough depth in the SETS book. This setup is specifically designed to support less liquid securities by ensuring there are quotes and a mechanism to execute trades even if there isn’t a large number of resting orders.

The other systems are oriented differently: SETS is the fully electronic order book for the most liquid stocks; Orb is a crossing facility for large blocks, and SEAQ/SeaQ is the older framework that previously handled non-SETS trading but has been superseded for many securities. So, for less liquid shares not traded on SETS, SETSqx is the appropriate trading system.