Group 1 - The core viewpoint of the articles highlights the success of Zhou Chengji in the 12th Global Derivatives Trading Competition, where he achieved third place by utilizing a mature wave theory trading system and maintaining stable psychological control [1] - Zhou Chengji attributes his victory to "stable mindset" and strict execution of his trading system, employing a swing trading strategy during the competition [1] - He emphasizes that the effectiveness of the wave theory trading system becomes more apparent during large market movements, advocating for strict adherence to his trading system rather than relying on intuition [1] Group 2 - Zhou Chengji categorizes his trading career into three phases: blind following, technical learning, and system maturity, where he combined theoretical knowledge with market practice [2] - The 2008 subprime mortgage crisis served as a significant test for him, leading to a focused study on risk control, which became a specialized topic in his trading approach [2] - His trading philosophy centers around the idea that "trading has a soul," where emotional stability is crucial for achieving the highest level of trading simplicity [2]