Group 1: Superhard Materials Sector - The superhard materials sector experienced a significant surge, with the sector index rising over 6% during trading, and individual stocks like Sifangda and Huanghe Xuanfeng seeing substantial gains [3][4] - Sifangda's stock price peaked at 18.48 yuan per share, with a maximum increase of 19.84%, while Huanghe Xuanfeng hit the daily limit, and Huifeng Diamond rose over 15% [3] - The superhard materials, including synthetic diamonds and cubic boron nitride, are critical for high-end manufacturing and advanced technologies, with projections indicating a substantial growth opportunity in the sector by 2025 [3][4] Group 2: Copper Cable High-Speed Connection Sector - The copper cable high-speed connection sector also saw notable activity, with Xinke Materials hitting the daily limit and Zhaolong Interconnect rising over 14% [6][7] - Credo, a leading company in the active copper cable (AEC) sector, reported a remarkable quarterly revenue of $268 million, a 272% year-over-year increase, driven by the growing demand for AI data centers [6][7] - The global AEC market is expected to grow at a compound annual growth rate of 45% from 2024 to 2028, with a potential market size of 8.8875 million cables by 2025 [8]

Core Viewpoint - Recent stock price fluctuations in superhard material companies are driven by upgraded export policies and industry value reassessment, alongside breakthroughs in diamond applications and expectations of industry consolidation [1] Industry Outlook - The superhard materials sector, including synthetic diamonds and cubic boron nitride, is crucial for high-end manufacturing and national technological advancement, with demand surging due to semiconductor localization, renewable energy, and high-end manufacturing upgrades [2] - The market for superhard materials is projected to reach approximately 75 billion yuan by 2025, with a compound annual growth rate of about 5.9% until 2030, and China's market share expected to grow to 22.8% of the global market by 2025 [3] Company Developments - Companies in the superhard materials industry are transitioning from scale expansion to quality enhancement, focusing on key technological breakthroughs and new applications [4] - LiLiang Diamond has achieved a breakthrough in large particle diamond single crystal growth technology, producing a diamond weighing 156.47 carats, setting a world record [5] - Companies are increasing R&D investments in functional diamonds for applications in optical windows, chip heat sinks, and semiconductor devices, indicating a shift from "tool materials" to "strategic materials" [5][6]