雪榕生物（300511）7月31日主力资金净流出1516.14万元

Group 1 - The core point of the article highlights the recent performance and financial metrics of Xuerong Biological (300511), including a stock price drop and significant changes in revenue and profit [1] - As of July 31, 2025, Xuerong Biological's stock closed at 6.26 yuan, down 2.64%, with a turnover rate of 2.7% and a trading volume of 139,600 hands, amounting to 88.19 million yuan [1] - The company experienced a net outflow of main funds amounting to 15.16 million yuan, representing 17.19% of the total transaction amount, with significant outflows from large orders [1] Group 2 - For the first quarter of 2025, Xuerong Biological reported total operating revenue of 441 million yuan, a year-on-year decrease of 27.04%, while net profit attributable to shareholders was 7.24 million yuan, an increase of 38.20% [1] - The company's current ratio is 0.381, quick ratio is 0.095, and debt-to-asset ratio stands at 70.89% [1] - Xuerong Biological has invested in 29 companies and has a total of 102 trademark registrations and 121 patents, along with 173 administrative licenses [2]