Following the introduction of MiFID, the pattern of equity trading in Europe is changing rapidly. The Fidessa Fragmentation Index (FFI) has emerged as the definitive measure of how trading is fragmenting across established and new venues.
Click here to see the top 20.

Fidessa Fragmentation Index

Week Ending 26 Jun

Index FFI (Prev)
FTSE 100 1.96 1.92
CAC 40 1.83 1.74
AEX 1.77 1.73
FTSE 250 1.74 1.61
DAX 1.71 1.58
BEL 20 1.49 1.43
NORDIC 40 1.43 1.34
SMI 1.41 1.32
MIB 30 1.25 1.20
PSI 20 1.03 1.02
IBEX 35 1.01 1.00

To analyse this summary click here.

From the blog...

A Shot in the Dark - 30th June 2009

Nice to see that BATS Europe has announced that it, too, is going to launch a dark pool service. While not too surprising, it is interesting to note that they will be offering a maker taker pricing model as this will be sure to extend the current price war into the dark arena as well.
BATS joins a long list including Chi-X, Turquoise, NYFIX Euro Millennium, SmartPool, Pipeline, NEURO Dark and, of course, Baikal, that will all offer traders different destinations for their dark order flow. If you add to this the pools operated by the major banks such as Goldman [...]

Tick Size Fever – 19th June 2009

Be careful what you wish for – 9th June 2009

Having your cake and eating it – 2nd June 2009

The Broker Dealer Conundrum – 19th May 2009