SETSqx and SEAQ

What is SETSqx?

Stock Exchange Electronic Trading Service: Quotes and Crosses (SETSqx) is a trading service for securities less liquid than those traded on SETS. The auction uncrossings are scheduled to take place at 8am, 9am, 11am, 2pm and 4:35pm. There are 2 types of order book model for SETSqx depending on whether the security has registered market makers providing non-electronic quotes. An execution in the final auction will set the security’s closing price for the day and generate a closing price crossing session, which provides a further trading opportunity to execute business at the closing auction price. Electronic orders can be named or anonymous and order book executions will be centrally cleared where indicated in Millennium Exchange & TRADEcho Business Parameters document.

There are two types of model for SETSqx, depending on whether the security has registered market makers providing non-electronic quotes. The model in operation determines which time in forces are valid for the electronic orders, and how these orders are publicly displayed ahead of the scheduled uncrossing.

SETSqx with Market Makers

This model combines a periodic electronic auction book, with standalone non-electronic quote-driven market making.  Registered market makers are obliged to make firm, 2-way quotes, between 8am and the end of the closing auction (including any price monitoring or market order extensions). While market maker quotes are not obliged to participate in any of the auctions, the mid of their best bid–offer forms the closing price should there be no closing auction execution that day. Electronic orders are only visible during the 10-minute call period ahead of the next scheduled uncrossing, except for the closing auction when the call period is restricted to five minutes. If time in force GFS is used any unexecuted orders will carry forward to the remaining auctions that day (but will only be visible in the call periods).

SETSqx with NO Market Makers

In this model the order book moves into next auction call immediately following previous uncrossing. Therefore orders are visible on submission until executed, cancelled or expired.  This model supports an extensive range of Non-London, Equity and Equity Like that is not defined by ESMA as liquid.  This is to facilitate On Exchange trade reporting in these instruments (SSX4 SXEL).

See European Quoting Service (EQS) for the equivalent service for securities defined by ESMA as liquid. 

 

What is SEAQ?

SEAQ is London Stock Exchange's non-electronically executable quotation service that allows market makers to quote prices in a number of fixed interest securities.

Registered market makers by security

Find out about companies we have welcomed to our markets

London Stock Exchange welcomes Skillcast Group plc to AIM

The Skillcast Group sets up compliance portals to help companies educate their staff and record, analyse, and evidence staff activities to cope with their regulatory and ESG (environmental, social and governance) obligations. Its technology application provides e-learning management, in-person training management, CPD (continuing professional development), policy attestation, staff declarations

Learn more
London Stock Exchange Welcomes Gelion Plc to AIM

London Stock Exchange today welcomes Gelion plc, the global energy storage innovator, on to the AIM market.

Gelion’s mission is to provide global energy storage solutions that are robust, safe and affordable with low environmental impact, enabling clean power and fresh water for all.

The Company aims to positively impact the transition to a net-zero-carbon economy by deployi

Learn more
128.84
London Stock Exchange welcomes Foresight Sustainable Forestry Company to the Premium Segment of the Main Market

The London Stock Exchange today welcomes Foresight Sustainable Forestry Company Plc (the “Company”), an externally managed investment company offering direct and liquid access to the attractive investment characteristics of UK forestry and afforestation projects.

The Company provides investors with the opportunity for real returns and capital appreciation driven by the preva

Learn more
London Stock Exchange Group welcomes Sir Alan Yarrow to honour his Chairmanship of Turquoise Global

London Stock Exchange Group today welcomes Turquoise Global Holdings Limited and Members of the Board for a Market Close Ceremony to honour Sir Alan Yarrow for his contributions as Chairman of Turquoise (TGHL) and to celebrate recent achievements.

Sir Alan Yarrow served as Non-Executive Director since 2010 and succeeded David Lester to become Chairman of Turquoise Global Holdings Limi

Learn more

Still have questions on SETSqx?

Enquire