北交所行业周报：近期北证50指数有所回调，本周开发科技上市-2025-03-31

Investment Rating - The report recommends focusing on the investment value of the North Exchange in 2025, particularly on quality stocks with stable growth and reasonable valuations [3][4]. Core Insights - The North Exchange 50 Index experienced a slight increase of +0.07% as of March 28, 2025, closing at 1306.50 points, while the Shanghai and Shenzhen 300 Index, ChiNext Index, and Sci-Tech 50 Index saw changes of +0.01%, -1.12%, and -1.29% respectively [9][18]. - The average market capitalization of the 265 A-share constituent stocks in the North Exchange is 2.717 billion [9]. - The liquidity of the North Exchange 50 saw a decline, with an average daily trading volume of 26.455 billion, down 33.29% from the previous week [21]. Summary by Sections North Exchange Market Overview - As of March 28, 2025, the North Exchange 50 Index recorded a slight increase of +0.07%, while the Shanghai and Shenzhen 300 Index and other indices showed negative performance [9][18]. - The proportion of stocks that increased in value was 46.04%, with 122 stocks rising and 143 falling during the week [14]. New Stock Updates - The new stock, Development Technology, was listed on March 28, 2025, with a total revenue of 2.933 billion in 2024 and a net profit of 589 million [24][25]. - The company specializes in smart metering terminals and AMI system software, with over 95% of its revenue coming from smart metering terminals from 2020 to 2024 [24][25]. Key Companies and Earnings Forecast - Key companies highlighted include: - Tongli Co., Ltd. (Stock Code: 834599.BJ) with a buy rating, projected EPS of 1.86 for 2025 and a PE ratio of 10.11 [4]. - Wuxin Tunnel Equipment (Stock Code: 835174.BJ) also rated as buy, with a projected EPS of 2.14 for 2025 and a PE ratio of 13.78 [4]. - Other companies such as Kaide Quartz and Hualing Co., Ltd. are rated as hold or accumulate, with projected earnings growth [4].