關鍵位爭持：瑞聲面臨41.5元阻力，突破還是回落？

Core Viewpoint - The recent price movement of AAC Technologies (02018) shows significant momentum, with a single-day increase of over 5%, currently hovering around HKD 39.66, indicating potential for a new upward trend or merely a technical rebound before facing resistance [1]. Technical Analysis - The stock price has successfully surpassed the 10-day moving average (approximately HKD 37.55) and the 30-day moving average (approximately HKD 39), suggesting strengthened short-term momentum [1]. - Key resistance levels are identified at HKD 41.5 and HKD 42.6, which are close to the 60-day moving average (approximately HKD 41.50), likely to create significant selling pressure [1]. - The first support level is at HKD 37.9, with a more solid support level at HKD 37.2 [1]. - The MACD signal has turned to "buy," but the stochastic oscillator has entered the "overbought" zone, indicating a potential for short-term consolidation or pullback [1]. Derivative Instruments - The derivatives market has become more active due to increased volatility in the underlying stock. Investors looking to capitalize on potential upward movements may consider call options, such as the Bank of China call option (29109), which offers approximately 4.11 times leverage and is one of the lowest premium products in the market [3]. - For investors anticipating a price pullback after reaching resistance, put options like UBS put option (19352) and HSBC put option (21079) provide hedging or bearish opportunities, both offering around 2 times leverage and characterized by low implied volatility [3].