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

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London Stock Exchange welcomes HydrogenOne Capital Growth plc to the Premium Segment of the Main Market

HydrogenOne Capital Growth plc, the first London listed hydrogen fund, offers growth potential in clean hydrogen and related technologies. The Company offers investors diversified exposure to private equity and listed hydrogen companies on an international basis. The Company has today listed on the premium segment of London Stock Exchange's main market and qualifies for the Green Economy Mark.<

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London Stock Exchange welcomes Spinnaker Acquisitions Plc to the Main Market

Spinnaker Acquisitions Plc (“SPAQ”) is a newly established purpose-built cash shell aiming to support businesses and projects in the areas of Sustainability and Energy Transition. With interest in the green economy as keen as it is currently, the objective is to find a business valued at £5–30M with strong profit potential and likely market appetite. 

SPAQ is a company co-founded

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London Stock Exchange welcomes BIG TECHNOLOGIES PLC to AIM

Big Technologies PLC, the UK-based, remote people monitoring technology company, has today taken the next step in its long-term growth strategy as it is admitted to AIM of London Stock Exchange. It is now trading on AIM, having raised gross proceeds in excess of £200 million, with ticker BIG. At the placing price of 200p per share, Big Technologies PLC has a market capitalisation of £577 millio

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London Stock Exchange welcomes Northcoders Group PLC to AIM

London Stock Exchange today welcomes Northcoders Group plc (‘Northcoders’), an independent provider of training programmes for software coding, to AIM under the stock market ticker CODE. The Admission price was 180p, resulting in a market capitalisation of £12.5milion. The Group joins the market to allow it to access the capital it needs to facilitate its growth strategy, particularly enabling

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