>It sounds like he participated in a pump and dump scheme/scam. "Pump and dump" means touting a stock using false information, and then dumping the shares befo

>It sounds like he participated in a pump and dump scheme/scam. "Pump and dump" means touting a stock using false information, and then dumping the shares before others realize that the information is false. On the other hand, information advantages (as long as they did not come from company insiders) are completely legal. This guy had an information advantage over those who bought the shares because he invested the time to investigate the company and others didn't. You are saying that outworking others is a "scheme/scam".