Group 1: 华虹半导体 (01347) - The stock price of Huahong Semiconductor recently fell to 76.75 HKD after reaching a high of 99.5 HKD, with investors considering buying call options at a support level of 63.3 HKD and 51.8 HKD [1] - There are limited put options available, with a reference support level of 63.33 HKD, and five products with an out-of-the-money range of 10% [1] Group 2: 广汽集团 (02238) - GAC Group's stock price has broken below the Bollinger Band's lower boundary, reaching a three-month low, leading to speculation about a potential rebound [2] - There are currently few suitable call options available for investors [2] Group 3: 比亚迪 (01211) - BYD's stock price is near the Bollinger Band's lower boundary at 69.8 HKD, with potential support levels around 68.5 HKD and 66.3 HKD, and a technical signal indicating a "buy" [3] - Eight call options are available with a resistance level of 73.4 HKD, showing significant differences in implied volatility and leverage [3] Group 4: 建滔积层板 (01888) - Kintor's stock price rose to 14.3 HKD, breaking above the Bollinger Band's upper boundary, but there is only one in-the-money product available, making it difficult to assess its value [4] Group 5: 阿里巴巴 (09988) - Alibaba's stock continues to decline, with a neutral technical signal and several call options available at an out-of-the-money level of 8% [5] - Among the options, there is a notable product with the highest leverage and lowest implied volatility, which may be attractive to investors [5] Group 6: 金沙中国 (01928) - Sands China has seen a significant drop in stock price to 17.89 HKD, attracting investors looking for a rebound [6] - A call option with a strike price of 19.3 HKD is available, with a notable product showing a leverage of 6.1 times and a relatively low premium [6] Group 7: General Observations - The analysis highlights the varying availability of products across different stocks, with some stocks having no products and others having only one, which may not be ideal for investors [6] - The best scenario is when a favorable stock has multiple product options available, allowing for better comparison of terms [6]