Core Viewpoint - Bank of America Securities has upgraded AAC Technologies (02018) from "Neutral" to "Buy" due to improvements in the company's fundamentals driven by smartphone component specification upgrades and a better environment for optical products [1] Financial Performance - The earnings forecast for AAC Technologies for 2025 to 2027 has been raised by 4% to reflect stronger profit margin performance [1] - The target price has been increased from HKD 44 to HKD 57, indicating a belief in more structural profit growth supporting a valuation reassessment [1] Market Outlook - Revenue for AAC Technologies is expected to achieve double-digit growth from 2025 to 2027, with profit margins also anticipated to improve [1] - The strategy of major competitor Sunny Optical Technology (02382) shifting towards the high-end market is expected to create greater growth opportunities for AAC Technologies in the mid-to-high-end market [1]