航发科技(600391.SH)：基本面未发生重大变化，存在市场情绪过热、非理性炒作风险

Group 1 - The core point of the article is that航发科技 (Aero Engine Corporation of China) has seen its stock price increase by 75.14% since December 4, 2025, significantly outperforming the 24.08% increase in the Shenwan Military Industry Index and the 6.14% increase in the Shanghai Composite Index during the same period [1] - Despite the substantial rise in stock price, the company's fundamentals have not undergone significant changes, indicating a potential risk of market sentiment being overly optimistic and irrational speculation [1] - The current stock price is at its highest point in nearly five years, suggesting a risk of a rapid decline in stock price in the short term [1]