Investment Rating - The industry investment rating is maintained at "Overweight" [2][9][30] Core Views - The vaccine industry is currently facing performance pressure in 2024 and Q1 2025, with inventory turnover and accounts receivable turnover needing improvement. The industry is still in a bottoming process due to high competition and declining prices for some products. Demand is also affected by consumer fatigue and insufficient market education, leading to a supply-demand imbalance [9][30] - The industry is actively adjusting pipeline layouts, focusing on technological iteration and innovative vaccines, while increasing R&D efforts for multi-valent products. In the long term, product innovation remains the core of competitive strength, with a focus on innovation and international expansion [9][30] Summary by Sections Recent Developments - Six vaccine companies have released their semi-annual reports, with four companies showing positive revenue growth and three companies reporting positive net profit growth attributable to shareholders. The upcoming week will see a concentrated release of semi-annual reports from vaccine companies, warranting attention to their performance [4][10] Market Performance - The vaccine sector saw a 4.41% increase last week, ranking second among the pharmaceutical sub-sectors. Year-to-date, the cumulative increase in the vaccine sector has expanded to 6.79% [5][12] Company Performance - The top-performing companies in the vaccine industry last week included Olin Bio, Wantai Bio, and Kangtai Bio, while the underperformers included Kanghua Bio and Zhifei Bio [6][12] Valuation - The vaccine sector's PE (ttm) was 85.49X, up by 3.67X week-on-week, with a one-year maximum of 85.49X and a minimum of 19.57X. The PB (lf) was 2.09X, also showing a week-on-week increase [7][8] Investment Recommendations - The report emphasizes the importance of focusing on companies with strong R&D capabilities and technological advantages, recommending Kangxino for its innovation strength and Kanghua Bio for its demand stability. Attention is also drawn to the upcoming semi-annual reports and changes in inventory and accounts receivable [10][30]