盘中直线大跳水，一则公告披露

Core Viewpoint - The stock price of AAC Technologies experienced a significant drop of over 14% following the release of its interim financial results, which showed a mixed performance compared to market expectations [1][4][5]. Financial Performance - For the first half of 2025, AAC Technologies reported revenue of 13.318 billion RMB, representing an 18.4% year-on-year increase [7]. - The company's net profit attributable to shareholders was 876 million RMB, reflecting a substantial growth of 63.1% year-on-year [7]. - The gross margin decreased to 20.7%, down 0.8 percentage points from the previous year, primarily due to changes in product mix [7]. Business Segments - The acoustic business generated revenue of 3.52 billion RMB, a 1.8% increase year-on-year, with a gross margin of 27.2%, down 2.7 percentage points [8]. - The automotive acoustic segment achieved revenue of 1.74 billion RMB, growing 14.2% year-on-year, with a gross margin of 23.9%, down 1.1 percentage points [8]. - The optical business saw revenue of 2.65 billion RMB, up 19.7% year-on-year, with a gross margin of 10.2%, improving by 5.5 percentage points [8]. - The electromagnetic transmission and precision components segment reported revenue of 4.63 billion RMB, a 27.4% increase year-on-year, with a stable gross margin of 22.9% [9]. - The sensor and semiconductor business generated revenue of 608 million RMB, a significant growth of 56.2% year-on-year, although the gross margin decreased to 12.1% [9]. Market Reactions and Analyst Ratings - Following the earnings report, the stock price of AAC Technologies fell sharply, with a market capitalization reduction to 52.4 billion HKD [5]. - Prior to the drop, the stock had seen a 26% increase from August 1 to August 20, with a market cap exceeding 60 billion HKD [12]. - Analysts from Bank of America upgraded the stock rating from "Neutral" to "Buy," raising the target price from 44 HKD to 57 HKD, citing improving fundamentals [13]. - CMB International also raised its target price from 58.78 HKD to 63.54 HKD, maintaining a "Buy" rating, reflecting expectations of growth in optical and precision components [13].