It is important to understand that the market-makers do not control the market. They are responding to market conditions and taking advantage of opportunities presented to them. Where there is a window of opportunity provided by market conditions – panic selling or thin trading – they may see the potential to increase profits through price manipulation, but they can only do so if the market allows them to. You must not therefore assume that market-makers control the markets. No individual trader or organisation can control any but the most thinly traded of markets for any substantial period of time.
Tom Williams – Mastering The Markets.
Contohnya panic selling seperti kondisi IHSG sekarang ini, ada banyak kesempatan jika cukup jeli.