--- title: "After a rise and fall, the Shanghai Composite Index slightly increased by 0.03% in half a day" type: "News" locale: "en" url: "https://longbridge.com/en/news/281830734.md" description: "The three major A-share indices rose and then fell, with the Shanghai Composite Index slightly up 0.03% to 3,881.17 points, the Shenzhen Component Index down 0.20%, and the ChiNext down 0.46%. The central bank conducted a reverse repurchase operation of 500 million yuan, with the interest rate maintained at 1.40%. The new regulations from the China Securities Regulatory Commission came into effect today, aimed at preventing short-term trading by major shareholders and executives. In terms of industries, animal health and other concept stocks performed well, while sectors like insurance led the decline. Leading companies in the industry held a seminar to promote the pricing mechanism for silicone products and production reduction agreements, with industry profits entering a recovery cycle" datetime: "2026-04-07T05:08:19.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/281830734.md) - [en](https://longbridge.com/en/news/281830734.md) - [zh-HK](https://longbridge.com/zh-HK/news/281830734.md) --- # After a rise and fall, the Shanghai Composite Index slightly increased by 0.03% in half a day Everyday Reporter: Liu Mingtao Everyday Editor: Zhao Yun The three major A-share indices fluctuated and fell back. As of the morning close, the Shanghai Composite Index rose by 0.03%, reporting 3881.17 points; the Shenzhen Component Index fell by 0.20%, reporting 13325.83 points; the ChiNext Index fell by 0.46%, reporting 3135.18 points; the Sci-Tech 50 Index rose by 1.63%, reporting 1276.70 points; the Beijing Stock Exchange 50 Index fell by 0.06%, reporting 1253.97 points. In terms of capital, the central bank conducted a 500 million yuan 7-day reverse repurchase operation today, with an operation rate of 1.40%, unchanged from before. In terms of news, the "Several Regulations on Short-term Trading Supervision" formulated by the China Securities Regulatory Commission came into effect today. The new regulations further clarify the supervision arrangements for short-term trading by major shareholders holding more than 5% of shares and directors, supervisors, and senior management personnel, with the core aim of preventing insiders from profiting from short-term trading using information advantages and maintaining market fairness. The leading company in the U.S. large model sector, Anthropic, announced that its annual recurring revenue (ARR) exceeds 30 billion dollars, a significant increase from 9 billion dollars at the end of 2025. The demand for Claude continues to accelerate, surpassing the industry-disclosed OpenAI annual revenue of 25 billion dollars. In terms of sectors, animal health, glyphosate, silicone concepts, and chemical raw materials saw the largest gains, while insurance, white goods, aviation airports, and aerospace performed poorly, leading the market decline. In 2025, there will be no new production capacity in the industry, coupled with the continuous clearance of overseas capacity, the growth rate on the supply side will officially peak. On the demand side, the demand in emerging fields such as new energy vehicles and photovoltaics continues to grow rapidly, along with a year-on-year increase in export volume, significantly improving the industry supply-demand pattern. Against this backdrop, leading companies in the industry held a seminar on industry development to reach a dynamic pricing mechanism and production reduction agreement for silicone products, promoting the industry's profitability into a recovery cycle. Here, by integrating the latest research reports from more than 10 brokerages including Tianfeng, Anxin, and Guosen, we bring you brief introductions to 4 companies for your reference. **1\. Xin'an Chemical Industry** The company is a dual leader in silicone and glyphosate. Against the backdrop of anti-involution, product prices are expected to rise from the bottom, and the company's performance is expected to reverse from the bottom ——Guojin Securities **2\. Hesheng Silicon Industry** The company currently has an annual production capacity of 1.73 million tons of organic silicon monomer. With the recovery of organic silicon product prices and profitability, the company, as an industry leader, is expected to continue benefiting. ——Everbright Securities **3\. Silicon Treasure Technology** The company has been deeply engaged in the organic silicon sealant industry for 27 years and has developed into a new material industry group with 9 production bases and an annual production capacity of 370,000 tons of high-end adhesives, establishing a rich product system that includes high-end organic silicon sealants, hot melt adhesives, silane coupling agents, and silicon-carbon anodes. ——Tianfeng Securities **4\. Luxi Chemical** The company continuously extends its industrial chain, gradually enhancing its comprehensive competitiveness, forming a relatively complete product chain of coal chemical, salt chemical, fluorosilicon chemical, and new chemical materials. The production synergy among various chemical product chains is good, and the production facilities are highly interconnected, with some products being able to be recycled as downstream raw materials. ——Tianfeng Securities Daily Economic News ### Related Stocks - [159957.CN](https://longbridge.com/en/quote/159957.CN.md) - [159150.CN](https://longbridge.com/en/quote/159150.CN.md) - [159901.CN](https://longbridge.com/en/quote/159901.CN.md) - [510210.CN](https://longbridge.com/en/quote/510210.CN.md) - [000001.CN](https://longbridge.com/en/quote/000001.CN.md) - [399006.CN](https://longbridge.com/en/quote/399006.CN.md) - [399001.CN](https://longbridge.com/en/quote/399001.CN.md) - [159943.CN](https://longbridge.com/en/quote/159943.CN.md) - [159915.CN](https://longbridge.com/en/quote/159915.CN.md) ## Related News & Research - [China April Retail Sales +0.2% y/y (exp 2%) & Industrial Prduction +4.1% y/y (exp 5.9%)](https://longbridge.com/en/news/286699672.md) - [China economy slows sharply as investment returns to contraction](https://longbridge.com/en/news/286707036.md) - [China's property investment extends decline in January-April](https://longbridge.com/en/news/286699189.md) - [China new home prices fall at slowest monthly pace in a year in April](https://longbridge.com/en/news/286697169.md) - [China New Yuan Loans Fell in April](https://longbridge.com/en/news/286394830.md)