Group 1 - On January 19, a total of 14 companies were investigated by institutions, with 8 companies being surveyed by funds [1] - Shu Dao Equipment received the most attention, with 4 funds participating in the survey, while Mingyang Electric and Ruipu Biotech had 3 and 2 funds respectively [1] - Among the surveyed companies, there is 1 company from the main board, 6 from the ChiNext board, and 1 from the Sci-Tech Innovation board [1] Group 2 - The total market capitalization of the surveyed A-share companies includes 1 company with a market cap over 50 billion yuan and 5 companies with a market cap below 10 billion yuan, including Tianlu Technology and Shu Dao Equipment [1] - In terms of market performance, 6 of the surveyed stocks increased in the past 5 days, with the highest gains seen in Shiji Information (21.98%), Tianlu Technology (11.08%), and Mingyang Electric (6.95%) [1] - Conversely, 2 stocks experienced declines, with Longxin Technology and Shu Dao Equipment showing the largest drops of 9.72% and 4.68% respectively [1]