RE:RBC Doubles It's Position In DatametrexI don't quite understand this . The list shows the purchases and sales which these banks make for their customers. The sum of all purchases and sales gives a balanced total . If these 3 banks held millions of DM shares, the total amount of shares bought would be higher than the total amount of shares sold. To me this is not logical and I see no evidence that these 3 banks hold larger positions.
The fact that the share price is deliberately kept down could be possible but that is not related to this list .