Core Viewpoint - China Mobile's stock price has been on a downward trend, with recent concerns about it potentially falling below 80 HKD, despite some short-term rebounds [1][3]. Technical Analysis - Current stock price is 81.05 HKD, down 0.12%, with a trading volume of 1.173 billion HKD. Support levels are at 78 HKD and 74.7 HKD, while resistance levels are at 84.4 HKD and 87.7 HKD. The probability of an upward movement is 56%, with a 5-day volatility of 2.5% [1]. - The RSI index is at 32, indicating oversold conditions, while the Williams indicator also signals a buy. The VR ratio shows a decrease in selling pressure, suggesting a buy signal. However, MACD and Bollinger Bands still indicate sell signals, leading to mixed market sentiments [1]. Derivative Products Analysis - Historical data shows that the Societe Generale call option (24167) linked to China Mobile rose by 8% within two days of its listing, while the underlying stock only changed by 0.31%, highlighting the leverage effect of options [3]. - Recommended products include: - Bank of China call option (23993) with a leverage of 10.1 and a strike price of 96.28 HKD, noted for its relatively low premium. - Bank of China put option (21625) with a leverage of 18.6 and a strike price of 75.83 HKD, which has the lowest premium and implied volatility [6][7]. Investment Strategy - Investors holding related options are advised to set profit-taking levels based on their risk tolerance to avoid potential losses from short-term volatility. New investors are cautioned against chasing high-premium options due to the unclear trend of China Mobile's stock [6][8].