Investment Rating - The report indicates a defensive attribute for the North Exchange market, with a slight decline in the North Exchange 50 Index by 0.22% and an overall trading volume of 20.68 billion yuan, suggesting a focus on sectors with stable performance [3][12]. Core Insights - The North Exchange A-share trading volume reached 20.68 billion yuan on October 14, an increase of 0.889 billion yuan from the previous trading day, with the North Exchange 50 Index closing at 1484.19, down 0.22% [1][7]. - The market showed significant differentiation, with certain stocks like Tonghui Electronics and KaiTeng Gas rising against the trend, while others like Jiuling Technology and Ximic Technology experienced notable declines [3][14]. - The main market themes revolved around trade dynamics and domestic substitution, particularly in the cultivated diamond and superhard materials sectors, which saw substantial gains due to export control policies [3][17]. Summary by Sections Market Review - On October 14, the North Exchange A-share trading volume was 20.68 billion yuan, with 278 companies listed, of which 121 rose, 9 remained flat, and 148 fell [1][12][14]. - The top five gainers included Huifeng Diamond (14.7%), Huaguang Source Sea (10.7%), and Aieneng Ju (9.3%), while the top five losers were Jiuling Technology (-10.2%), Yuanhang Precision (-9.3%), and Changfu Co., Ltd. (-7.5%) [14][16]. Important News - Tesla's Cybertruck sales have fallen short of expectations, with production line utilization estimated at only 10%, leading to skepticism about actual sales figures [17]. Key Company Announcements - Zhongke Meiling announced a cash management plan not exceeding 250 million yuan, while Yeguangming plans to invest up to 100 million yuan in safe and liquid financial products [18][19].