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Statistik › Globale Märkte und Börsen › Internaliser share

The systematic internaliser share of European trading is 21%, 13%, 8% or 5% depending on what you count

Filter appliedAnteilScopeQuelle
All reported trades, unfiltered21%European Union, first half of 2020Industry body using commercial data
Remove non price forming and out of hours13%Same dataGleich
Also remove large in scale8%, internalisers and over the counter togetherSame dataGleich
France, per data providers15% to 20%French equities, 2020National regulator
France, price forming only11% to 14%French equities, first quarter 2020National regulator using Refinitiv
France, addressable and price forming8% to 10%GleichThe regulator's own estimate

Each row is correct for what it measures. Nearly 30 per cent of internaliser amounts in the French data were not price forming. The supervisor's separate series from transaction reports runs 5.4 per cent in 2022 to 8.9 per cent in 2025 excluding intragroup trades, with intragroup adding a further 2 to 2.5 per cent.

Four separately verified measurements of the same quantity give completely different answers, because each applies a different filter. The unfiltered figure is 21 per cent of reported notional and the strictest is 8 per cent once non price forming and block trades are removed.

21%Unfiltered share of all reported notional
13%After removing non price forming and out of hours trades
8%Internalisers and over the counter combined, after also removing blocks
5.4% then 8.9%Supervisor's own series excluding intragroup, 2022 then 2025

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