黄金股，全线大跌

Market Overview - The Hong Kong stock market experienced a significant decline on January 30, with all three major indices dropping over 2%. The Hang Seng Index fell by 2.08%, the Hang Seng China Enterprises Index decreased by 2.47%, and the Hang Seng Tech Index dropped by 2.1%. The total market turnover was HKD 301.6 billion, with net buying from southbound funds amounting to HKD 3.22 billion [2][3]. Steel Sector - The steel sector faced a collective downturn, with notable declines in major companies: China Hanking fell by 11.04%, Ansteel fell by 6.05%, Chongqing Iron & Steel dropped by 4.55%, and Maanshan Iron & Steel decreased by 4.24% [4]. - Despite the downturn, some institutions remain optimistic about the steel sector, citing its strong "anti-involution" characteristics and significant profit recovery potential. They believe that quality steel companies will gradually improve their performance, leading to upward elasticity and valuation uplift due to improved supply dynamics. The sector is viewed as having medium to long-term strategic investment opportunities, with a "positive" rating maintained by the brokerage [6]. Gold Sector - Gold stocks collectively plummeted on January 30, following a period of strong gains. Notable declines included Chifeng Jilong Gold falling by 14.38%, Shandong Gold by 14.31%, and Zijin Mining by 10.70% [7]. - Earlier in the year, Chifeng Jilong Gold had seen a cumulative increase of over 30% [8]. Optical Communication Sector - The optical communication sector showed resilience, with Longi Fiber Optic Cable rising by 6.76% despite the overall market decline. This increase is attributed to rising demand for new optical fiber products from overseas data centers, with expectations of price increases in domestic optical fibers by 2026 [10][11]. - Other companies in the optical communication space also saw gains, including Huiju Technology up by 4.59% and Hong Teng Precision up by 4.47% [11]. Company Developments - Giant Legend announced a sales contract for quadruped robots with an independent third party, with production expected to reach mass production by the first quarter of 2026. The company also plans to establish a joint venture for the sales and promotion of consumer-grade IP robots [12][14].