Core Viewpoint - The A-share market has shown a rising trend since May, leading to increased institutional research on listed companies, with over 1,000 companies receiving institutional visits by May 13 [1] Group 1: Market Performance - More than 90% of the companies that were researched by institutions have achieved positive returns since May [1] Group 2: Industry Focus - The most concentrated sectors for institutional research in May are machinery equipment, electronics, and pharmaceutical biology [1] - Specific investment opportunities highlighted by institutions include humanoid robots, high-performing segments within the electronics industry, innovative drugs, and pharmaceutical exports [1]