西格内特珠宝股价逆势下跌，业绩疲软与行业调整成主因

Group 1 - The core viewpoint is that Signet Jewelers (SIG.N) experienced a stock price decline of 5.58% on February 10, 2026, closing at $91.58, despite the overall luxury goods sector rising by 1.04% on the same day. This decline is attributed to weak performance and a deep adjustment in the diamond industry, including revenue decline, significant net profit drop, and the impact of lab-grown diamonds [1] Group 2 - In the recent stock performance, Signet Jewelers' stock showed volatility over the past week (February 5 to 11, 2026), with a high of $97.73 on February 10 and a low of $90.68 on February 5, resulting in a price fluctuation of 7.46%. As of February 11, the stock closed at $92.70, reflecting a daily increase of 1.22%, but a cumulative decline of 1.89% over five days. The trading volume on February 10 reached $83.52 million, with a turnover rate of 2.21%, indicating increased market divergence [2] Group 3 - The company's fiscal year 2025 quarterly report indicates a revenue decline of 5.81% year-over-year and a substantial net profit decrease of 83.93%. Although the gross margin remains at 42.59%, the net profit margin is only 4.28%, highlighting challenges in cost control and profit conversion efficiency. Additionally, the earnings per share for the mid-year report in 2025 was -$3.17, a year-over-year decline of 192.42%, raising concerns about the sustainability of performance [3] Group 4 - Institutional perspectives reveal that approximately 50% of institutions have assigned a "hold" rating, reflecting cautious market sentiment. Industry analysis indicates that diamond prices have been declining since peaking in 2022, with a more than 20% drop in the price of 0.5-carat diamonds in 2025. Coupled with a consumer shift towards lighter gold jewelry, this trend further compresses the demand for diamond jewelry [4]