He takes big positions in companies and then makes a lot of noise about how the company can do better. (wealthdaily.com)
You can win big and then you get really confident and you start to trade bigger positions of stock and then you get a major down day or down week. (freemoneyfinance.com)
Investors love to follow activist money managers who take big positions in a company, often get on the board and then lobby for changes that make the stock rise. (greenbackd.com)