In this month’s Equity Trading Newsletter, you will find equity product innovation updates as we plan to (1) launch dark trading and midpoint functionalities, and (2) expand our retail offering for pan-European and US stocks.

Simon Gallagher

Highlights

Euronext will launch dark, midpoint and dark-lit sweep functionalities on its Central Order Book: a full suite of dark limit orders, peg to midpoint and sweep functionalities for Dark to Lit interactions at 10x lower latency than MTFs.

Euronext will expand its retail offering on the Global Equity Market (GEM) and Trading After Hours (TAH): over 300 pan-European and US shares will be available for trading until 20:30 CET, cleared and settled in Euros, with the same market microstructure and connectivity as Euronext main markets.

1. Dark trading and midpoint functionalities

• The latency between Euronext and London MTFs has multiplied by ~10 since the migration of Euronext Data Centre from Basildon (UK) to Bergamo (Italy), thus Dark to Lit execution performance is deteriorating on MTFs
• Euronext will launch dark functionalities allowing participants to source liquidity in both pools (Dark and Lit) within the Central Order Book – at no latency
• Focus is mainly on execution below Large-In-Scale since two thirds of dark trading in Europe occurs below LIS threshold
• Full suite of functionalities: Limit orders / Peg to Midpoint / Sweep functionalities for Dark to Lit interactions / Minimum Quantity and Size thresholds (MAQ & MES)
• Limited market impact on orders executed on the dark book and, thanks to the sweep functionalities, orders can be transferred to the Euronext Lit CLOB with no latency in case of partial or no execution in the dark
• Expected timeline for the launch is Q4 2023, and in the meantime we welcome your thoughts on the full design of functionalities and the technical implementation.

  Data source: big xyt

 

Data source: big xyt – EBBO regain dashboard

2. Pan-European and US stocks on Euronext GEM

• Euronext Global Equity Market (GEM) and Trading After Hours (TAH) are up and running MTFs already managed by the Euronext Group
• Dedicated retail offering with 100+ EU and US blue-chips available
• Trading until 20:30 CET overlapping with US markets hours
• Same connectivity, microstructure, market surveillance as Euronext main markets – and already migrated onto Euronext's Optiq platform on 27 March 2023
• 40+ members connected: local retail banks, global brokers and market makers
• A full revamp of the market will occur in Q3 2023, with a dedicated market making scheme to boost liquidity and an expanded stock universe.
   

  Country of reference market	Number instruments on GEM and TAH today	Number instruments on GEM and TAH "tomorrow"
  US	26	200+
  Germany	34	100+
  Spain	6	30+
  Finland	1	10+
  Sweden	-	20+
  Austria	-	10+
  Euronext countries	32	Euronext blue chips for Trading After Hours

The Euronext Equities team

In the news

The TRADE News - 16 May 2023

Euronext to launch dark trading and expanded retail trading services amid second best quarterly results in its history

New dark offering is aimed at reducing latency arbitrage for clients following the exchange’s data centre migration, Euronext’s Simon Gallagher and Vincent Boquillon told The TRADE.
Read the article

At the FIX Nordic Trading Conference

We were delighted to catch up with our Nordic members in Stockholm last week, and we look forward to continuing to strengthen our products and services offering in the region.

For more information

Contact our Equities Team

Don't hesitate to contact your sales representatives with any queries or feedback.
Thank you!

 

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Pages: 18

Publication: 10 July 2020

Authors: Paul Besson, Head of Quantitative Research and Théo Compérot, Quant Research Analyst

VBBO Trading: a best execution solution for retail investors or for market makers?

On average there is an overall negative price improvement of −0.5 bps for VBBO trading vs EBBO. These deteriorations worsen with wider spread and larger trade sizes (see Table 2, p7)

• We observe a strong negative relationship between the trade size and the price improvement of Volume Weighted Best Bid and Offer (VBBO) trades. The larger the trade size, the more negative the price improvement (see Figure 7, p9). For example, the average improvement for a €2,500 trade is −0.4 bps, while it is −1.0 bp for a €7,500 trade.
• Likewise, we also observe a strong negative relationship between price improvement and average spread size (measured at the time of the trade). Thus, for a 5 bps spread we observe a −0.3 bps price improvement, while for an 18 bps spread we observe a −1.0 bp price improvement versus European Best Bid and Offer (EBBO) (see Figure 9, p10).
  
   

VBBO seems to be a better best execution solution for market makers than for retail investors

• We show that the worsening of execution price versus EBBO (+0.5 bp on average) is mostly attributable to the cases where the second best limit price contributes to the VBBO. Enabling trading at a reference price including a second limit computation, when the first limit is still valid (see Figure 18, p15), provides a unique opportunity to the market maker to sell at a higher price than the available best ask (+4.1 bps), even 100 milliseconds after the trade took place.

• Overall, buying at EBBO +0.5 bps should not necessarily be considered as a proof of best execution for a retail order. This net reference is achieved by most compliant institutional investors. As evidenced by the improved quotes versus EBBO offered by market makers to retail investors, an execution price that is better than standard EBBO should be expected to demonstrate best execution for these highly prized flows.

• More fundamentally, any kind of reference price system that does not allow market makers to compete on prices, thus prevents retail investors from benefitting from the price improvements these uninformed flows are entitled to receive. Therefore a central order book model with improved quotes for retail flows seems the most natural design to transparently pass on price improvements to retail investors.

Purpose

In this study we aim to compare Equiduct VBBO trades with the corresponding EBBO quotes to assess the performance of these types of trading. Performance of VBBO trading will be measured by the relative difference between executed prices and their corresponding EBBO reference prices. We have therefore reviewed all VBBO trades from Equiduct from December 2019 to February 2020. This corresponds to 1.16 million individual retail trades.



EBBO computations were provided by QuantHouse, the leader in high frequency data, chosen for its strong real-time data expertise.



We will focus on 4 main objectives:

• Compare prices for VBBO trades with EBBO prices to determine the price improvement or price deterioration observed in these trades;
• Study how this relative performance behaves with the corresponding underlying trade sizes and the bid-ask spreads of stocks;
• Explain the Equiduct VBBO trading performance by considering independently those trades with sizes available on the EBBO first limits, and larger trades with sizes that were not available on the EBBO first limits;
• Consider the question of best execution for VBBO trading.
  
   

Download the report

Pages: 20

Publication: 13 October 2020

Authors: Paul Besson, Head of Quantitative Research and Théo Compérot, Quant Research Analyst

BoB versus Apex

No free lunch - trading on Apex more costly than on Best of Book

Complementing our first paper on VBBO Trading (July 2020), we analysed the overall costs of trading on Equiduct’s Apex vs on Euronext’s Best of Book (BoB):

• We have considered all Apex and BoB trades from December 2019 to April 2020 on the same stock universe with similar characteristics, thus regrouping 2.3 million trades on Equiduct and 3.6 million Euronext trades. We then computed the net price improvement on each of these trades using QuantHouse European Best Bid Offer computed at the same microsecond.
  
   
• Overall, we found that BoB improvements, net of fees, are outperforming Apex improvements by +1.36 bps using simple averages, and by +2.47 bps when using turnover weighted averages. This clearly demonstrates that the Euronext BoB model outperforms the Equiduct Apex zero fee model (see Figure 7).
  
   
• As Apex’s reference price model does not enable market makers to improve prices, as is the case for BoB, relative net improvement of BoB versus Apex strongly increases as spreads widen. On spreads larger than 10 bps, BoB’s improved quotes outperform the EBBO in 40% of cases (see Figure 12).
  
   

Download the report

Pages: 40

Publication: 17 February 2022

Authors: Paul Besson, Head of Quantitative Research, Théo Compérot, Quant Research Analyst and Victor Vialard, Quant Research Analyst

Price reversion has become an essential topic for traders seeking to improve their allocation across venues. In this paper, based on public market data from primary markets and MTFs and using 0.8 million trades, we address specifically three key questions related to Markouts and venue selection for the benefit of investors.



We first evidence that Markouts increase almost linearly with spreads, and that their main driver is the aggressive trade size expressed as a proportion of the available consolidated liquidity (see Figure 8 p11).



Then, we exhibit that Markouts +1s after an aggressive buy trade at the European Best Offer are +0.4 bps larger for Turquoise and +0.6 bps larger for Cboe Europe compared to Euronext (see Figure 21 p22).



Lastly we show in the same manner that Markouts +100s after an aggressive buy trade at the European Best Offer are +0.4 bps larger for Turquoise and +0.8 bps larger for Cboe Europe compared to Euronext (see Figure 24 p24).



We believe that, for the benefit of investors, better Markouts on Euronext should be reflected in overall passive trade allocations.

Price Markouts and venue selection

Venues and Markout analysis

The analysis of price changes occurring before and after elementary executions on venues is often referred to as “price reversion” or “Markouts” analysis. When assessing the characteristics of both Dark and Lit venues, these metrics have become essential to help participants improve their trading outcomes through a reliable method of venue selection.



Many public studies are available on EBBO presence and the available depth across European trading venues. Nevertheless, there is surprisingly little or no publicly available assessment of trade Markout analysis across European venues in the academic literature.

Best execution and venue selection for aggressive and passive trades

Venue selection for investors’ trades is both a crucial and complex topic. While the ultimate choice of venue results from the executing brokers’ own order-routing logic, investors’ trading performance depends on this key choice. Venue selection covers two distinct situations that must be differentiated between: aggressive and passive trading.



Venue selection in the context of aggressive trading is strictly controlled by best execution practices which require that aggressive trades are routed first to venues that display the required quantity at best price. Therefore, differences in venue selection exist, but they only come into play when several venues display similar liquidity at the same price.



In contrast, venue selection in the context of passive trading is open to more interpretation. Some investors seem to believe that across similar types of venue, sending a passive limit order should lead to the same outcome, as the execution price remains the same in all cases. Thus some may think that the choice of venue for passive trades is only a secondary matter. Our main objective in this paper is to evidence that different passive trading allocations lead to different outcomes.

Main questions addressed on Markouts across Lit venues

In this note we focus on multilateral Lit venues. We first evidence the properties of Markouts following a trade. We then show the main drivers of Markouts. Then we compare Markouts across the main continental Lit venues: Euronext, Cboe Europe and Turquoise. Finally, we show significant differences in outcomes and relate these findings to passive posting strategies across exchanges.

 

Request the report, contact us:  QuantReports@euronext.com