Horrible news if you hate tape reading or algorithmic trading:
http://www.ft.com/cms/s/0/aef1c188-fed6-11de-a677-00144feab49a.html
Source Financial Times.
http://www.ft.com/cms/s/0/aef1c188-fed6-11de-a677-00144feab49a.html
Source Financial Times.