PACIFIC QUARTZ(SH:603688) Xin Lang Cai Jing·2026-02-12 02:46Group 1 - The core viewpoint of the news is that Quartz Co., Ltd. (stock code: sh603688) experienced a limit-up on February 12, 2026, with a price of 47.47 yuan, marking a 10.01% increase and a total market capitalization of 25.713 billion yuan [1][2]. Group 2 - The reasons for the stock's limit-up include breakthroughs in the semiconductor business, a stable financial structure, and capacity expansion. The company's semiconductor business now accounts for nearly 50% of its revenue, with self-produced high-purity quartz sand certified by leading domestic storage wafer enterprises, opening up significant market opportunities [2]. - The company's financial structure is robust, with a debt-to-asset ratio of only 4.52%, indicating strong risk resistance. This solid financial status enhances investor confidence, especially in the current market environment [2]. - The company has revised several management systems to improve governance transparency and standardization, which is beneficial for long-term stable development. Additionally, some production lines of the third-phase project have already been put into operation, contributing to capacity expansion [2]. - From an industry perspective, the semiconductor sector has been highly active since 2026, with many related companies seeing significant stock price movements. On February 12, multiple semiconductor concept stocks rose, creating a sector-wide effect that contributed to Quartz Co., Ltd.'s limit-up [2]. - On the technical side, the stock's MACD indicator has recently formed a golden cross, and the stock price has broken through short-term resistance levels. Significant net inflows from large orders on February 12 indicate that major funds are entering the market, driving the stock price to its limit-up [2].