23 August 2017
Steve Grob

Fidessa Fragmentation Index

Steve Grob - Fidessa

135Posts 513,053Views 3Comments

A Shot in the Dark

26 May 2010  |  3342 views  |  0

This week saw the announcement that six brokers are going to publish their dark pool volumes in a bid to improve transparency of non-lit trading in Europe. The report is published by Markit and is available here. Whilst the six firms involved should be applauded for taking these first steps towards greater transparency, the announcement still leaves a few questions unanswered. Firstly, not all the big boys are playing - notable by its absence is Goldman Sachs and it will be interesting to see what happens to the figures if and when it decides to play too.

Also, the published numbers represent only a fraction of the total non-lit volumes being reported across dark MTFs, OTC trades and Systematic Internalisers. Take the FTSE 100, for example. Last month 66% of its constituents were traded on various lit venues including, of course, the LSE, Chi-X and BATS Europe etc. The remainder was split across registered dark MTFs such as Chi-Delta and Nomura NX, bilateral OTC trading and Systematic Internalisers. Just to be absolutely clear, however, nobody is suggesting that a third of the FTSE 100 last month was traded on broker dark pools but what is certain is that it wasn’t traded on lit venues either. While the new Markit report provides some useful additional data, the only way to get a completely accurate figure is to deduct the Markit numbers from the OTC and SI reports, add back in the registered dark MTFs and then make a guess as to what is missing.

Another point that was made to me is that it is still not possible to get an accurate, independent figure for broker dark pool trading in a particular stock or index as the Markit report only provides a combined number of some broker dark pool trades in each country in Europe.

Markit can only publish the information they are given but, until the industry as a whole unites behind a common methodology and approach, it looks like we will remain somewhat in the dark about the dark.

TagsTrade execution

Comments: (0)

Comment on this story (membership required)

Latest posts from Steve

Relocation, Relocation, Relocation

14 June 2017  |  5268 views  |  0 comments | recomends Recommends 0 TagsTrade executionRisk & regulation

MiFID II - the best thing that ever happened?

08 June 2017  |  8197 views  |  0 comments | recomends Recommends 0 TagsTrade executionRisk & regulation

Be careful what you wish for

26 April 2017  |  4902 views  |  0 comments | recomends Recommends 0 TagsTrade executionRisk & regulationGroupMiFID

Thomas in Blockland

22 February 2017  |  4924 views  |  0 comments | recomends Recommends 0 TagsTrade executionRisk & regulationGroupMiFID

Mince pies and MiFID

03 January 2017  |  3503 views  |  0 comments | recomends Recommends 0 TagsTrade executionRisk & regulation

Steve's profile

job title Director of Group Strategy
location London
member since 2009
Summary profile See full profile »
I am responsible for strategic development at Fidessa. This includes the development of new geographic markets and strategic partnerships and driving new industry initiatives. As part of this I head u...

Steve's expertise

Member since 2004
130 posts3 comments
What Steve reads

Who's commenting on Steve's posts

Xavier Barrier