Group 1 - In the past 10 days (from December 16 to December 29), 50 listed companies were surveyed by overseas institutions, with SAIC Motor being the most focused, receiving attention from 17 overseas institutions [2] - A total of 322 companies were surveyed by institutions in the last 10 days, with securities companies surveying 291 companies, accounting for the largest share, followed by fund companies with 210 companies [2] - The average stock price of companies surveyed by overseas institutions increased by 4.51% over the past 10 days, with notable performers including Pulite and Mailland, which saw increases of 24.76% and 21.88% respectively [2] Group 2 - The stock price performance of companies surveyed by overseas institutions shows that 12 companies experienced declines, with Huali Group having the largest drop at 12.42% [2] - The list of companies surveyed includes Pulite, Mailland, and SAIC Motor, among others, with varying degrees of interest from overseas institutions [3] - SAIC Motor's stock price decreased by 2.72% despite being the most surveyed company, indicating potential concerns among investors [3]