Details of current pump groups.
Please list ones you know about and give positive or negative views.
A pump that appears to be actual interest or popularity is far more powerful and those are pulled off by two to six person teams and often across multiple exchanges and involves techniques that get more people involved than just the group doing it.
When it happens the right way, no one knows that the pump is artificial and that there may or likely will be a dump. It is a thing of beauty and would actually require a very wide view of the markets to fully see and appreciate.