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

80.6
London Stock Exchange welcomes Fidelity International celebrating their latest range of ETFs

Fidelity International (Fidelity) expands its Sustainable Research Enhanced ETF range with the launch of 3 new funds offering exposure to Emerging Markets, Japan and Pacific Ex Japan.

Fund Ticker OCF Comparative market index Fidelity Sustainable Research Enhanced Emerging Market Equity ETF FEMR 0.50%  MSCI Emerging Markets

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78.04
London Stock Exchange welcomes One Heritage Group plc to the main market

London Stock Exchange welcomes One Heritage Group PLC (“One Heritage”) to trading on the Main Market by the way of a standard listing. The Group undertakes developments to create self-contained apartments while also refurbishing existing residential properties to create Co-living accommodation. It listed on 23 December 2020 having successfully raised £930,000 through a subscription and placemen

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88.08
London Stock Exchange welcomes Schroder BSC Social Impact Trust plc to the Premium Segment of the Main Market

Today London Stock Exchange markets were opened by Schroders and Big Society Capital to celebrate the listing of the Schroder BSC Social Impact Trust plc.

It is a new investment trust focused on investing in social impact investments that seek to address a range of issues including tackling the significant increase in homelessness, providing support for people with learning disab

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London Stock Exchange welcomes Ecofin U.S. Renewables Infrastructure Trust plc to the Main Market

Ecofin U.S. Renewables Infrastructure Trust plc (the "Company”) is pleased to announce that it has raised gross proceeds of $125 million pursuant to its initial public offering.

The Company intends to execute its investment objective by investing in a diversified portfolio of Renewable Assets predominantly in the United States, but it may also invest up to 15% of Gross Assets in

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