Zaisheng Technology (603601) Limit-Up Reason and Market Analysis

On December 8, 2025, Zaisheng Technology (603601) hit the limit-up due to the overall rise in the glass fiber sector [1]. At the sector level, glass fiber prices bottomed out and rebounded this year, improving the industry’s profitability; meanwhile, wind power construction accelerated in the final year of the 14th Five-Year Plan, driving growth in glass fiber demand—global wind power installed capacity is expected to reach 138GW in 2025, a year-on-year increase of approximately 17.9%, and as a core material for wind turbine blades, glass fiber demand is strongly supported [0]. Regarding market sentiment, an investor survey by East Money showed that 78.34% of participants are bullish on the stock, with a bullish sentiment [0]. In terms of capital and technical aspects, the turnover rate on the day was 2.98%, with a trading volume of 30.66 million shares and a transaction amount of 1.763 billion yuan; major funds had a net inflow of 83.57 million yuan (accounting for 47.40% of total transactions), super large orders had a net inflow of 1.194 billion yuan (accounting for 67.73% of total transactions), and institutional funds showed strong buying willingness; the stock opened with a limit-up and remained so throughout the day, with solid support for the limit-up [0]. In terms of fundamentals, the company’s third-quarter report showed revenue of 985.1 million yuan (year-on-year -10.11%), net profit of 81.25 million yuan (year-on-year -10.59%), but it continues to promote the “technology + industrial chain + marketization” trinity development strategy, with positive long-term growth prospects [0].

1. Significant Sector Linkage Effect
   : Multiple stocks in the glass fiber sector hit the limit-up on the same day (e.g., Honghe Technology), reflecting the driving role of the sector’s overall market trend [0].
2. Institutional Funds Dominate the Market
   : Super large order inflows accounted for over 60%, indicating that the limit-up trend was dominated by large funds such as institutions, providing strong short-term support [0].
3. Clear Demand-Side Logic
   : Accelerated wind power construction and glass fiber price rebound form a dual driver, with expectations of improved industry fundamentals as the core catalyst [0].

• Risks
  : The current PE ratio of the stock is 54.67, higher than the industry average, with the risk of overvaluation [0]; the company’s major shareholders recently reduced their holdings by 8.7 million shares, which may put pressure on the short-term stock price [0].
• Opportunities
  : The trend of profit recovery in the glass fiber industry and growth in wind power demand is clear, and the industry’s prosperity is rising [0]; the company’s long-term development strategy is advancing, and it is expected to benefit from the industry recovery [0].

Zaisheng Technology (603601) hit the limit-up on December 8, 2025, driven by the rebound in the glass fiber sector, glass fiber prices, and wind power demand [1]. Market sentiment is bullish, institutional funds flowed in significantly, and the limit-up support is solid; however, attention should be paid to the risks of overvaluation and major shareholder reduction, while also focusing on opportunities brought by the recovery of the glass fiber industry and the company’s long-term development strategy [0].