10倍牛股，历史新高，从跌停到涨超8%

Market Overview - High dividend assets strengthened, with the coal sector leading the gains, while banking, electricity, and transportation sectors also performed actively [1] - As of the morning close, the Shanghai Composite Index fell by 0.09%, the Shenzhen Component Index decreased by 0.19%, and the ChiNext Index dropped by 0.5% [1] Individual Stock Performance - Hai Xin Food reached its daily limit, marking its sixth consecutive rise, with the company confirming no violations of information disclosure and no significant changes in its fundamentals [3] - Tianpu Co., a notable stock, resumed trading and saw a morning increase of 7.12%, after a previous drop limit during the opening auction [3][5] - Tianpu Co. reported a cumulative increase of 451.8% in stock price from August 22 to November 27, indicating significant trading risks [5] Cultivated Diamond Sector - The cultivated diamond sector saw a rise, with stocks like Sifangda and Huifeng Diamond experiencing substantial gains [7] - The upcoming 2025 Cultivated Diamond Industry Conference in Zhengzhou is expected to unveil significant developments, including the establishment of the "Henan Province Cultivated Diamond Promotion Center" and the signing of approximately 30 key projects with a total investment of no less than 15 billion [11] - The cultivated diamond industry has been active this year, driven by technological breakthroughs and new application scenarios, particularly in high-function materials for strategic emerging industries [11][12] Industry Insights - Traditional superhard product demand is under pressure, but ongoing technological advancements in functional diamond materials are opening new growth opportunities [12] - The application of diamond for heat dissipation in high-end chips is recognized as a key development direction, especially as the semiconductor industry progresses towards smaller technology nodes [12]