Shang Hai Zheng Quan Bao·2025-10-10 12:21Core Viewpoint - The adjustment of margin trading securities and their corresponding ratios by Shenwan Hongyuan Securities and Shenwan Hongyuan West Securities is set to take effect on October 13, with significant changes for several stocks, particularly in the technology sector [1][3]. Group 1: Margin Trading Adjustments - The margin trading securities for stocks such as XianDao Intelligent, NanjiGuang, Manenset, and others have seen their margin ratios increased from 0% to between 30% and 70% [1][2]. - Conversely, stocks like Tongyu Heavy Industry and Chuangyitong have had their margin ratios decreased from 65% to 0% [1][2]. Group 2: Market Reactions and Valuation - The recent adjustments have raised concerns in the market, particularly regarding the leverage funding withdrawal from semiconductor stocks like Bawei Storage and Zhongxin International, which had their margin ratios set to 0% just one trading day prior [2][3]. - The static price-to-earnings (P/E) ratios for Zhongxin International and Bawei Storage have decreased to 276.75 and 279.33, respectively, moving them out of the "high valuation warning zone," which may facilitate the restoration of their margin ratios [4]. Group 3: Regulatory Context - The adjustments are in line with regulations established in 2016, which dictate that stocks with a static P/E ratio exceeding 300 or negative values should have their margin ratios set to 0% [3][4]. - The recent market activity and the strong performance of technology stocks have prompted brokers to adjust margin ratios as a response to market conditions [3].