Manipulations, 1er juillet 2009 :

Vidéo en anglais sur Bloomberg à voir absolument sur les manipulations de marchés (par Zéro Hedge)
-60 à 70% des volumes proviennent du trading automatique haute fréquence. Comme sur la plateforme Sterling de Universal Day Trading, quand vous placez un ordre sur le carnet d'ordre, certains ECN vous rémunèrent pour votre apport de liquidité. Ainsi il est possible de gagner sur ces frais sans même faire de gain au niveau des trades.

"I have a feeling one day the door is gonna close, everyone is going to be running for the exits, there is going to be a major move in the market and everyone is going to wonder "what happened?"

There is problem structurally in the equity markets that nobody wants to talk about. There is intervention, there is manipulation going on. No one has exact proof of what is going on but it's out there, and the real liquidity has been gone for a while. People don't understand, the liquidity is not coming back."