http://www.scribd.com/doc/101205428/6-2-Increased-Registry-Activi...

http://www.scribd.com/doc/101205428/6-2-Increased-Registry-Activity-Versus-ASX-Buying-and-Selling

Their research suggests that the 'dark pool' trading is more than 50 % of all CDU trades in 2012.

someone very wise said:The true scandal is the the things that are allowed to happen within the rules.

At least the ASX is waking up to the fact that retail traders are starting to stay away from the market because they no longer have confidence that it is a fair market.