Group 1 - On January 21, a total of 37 companies were investigated by institutions, with 25 companies being surveyed by funds, including notable interest in Tongfu Microelectronics (002156), CIMC Enric (301559), and Taili Technology (301595) [1] - Among the surveyed companies, 11 are from the Shenzhen Main Board, 11 from the ChiNext, 2 from the Shanghai Main Board, and 1 from the Sci-Tech Innovation Board, covering 11 different industries, with the electronics and machinery equipment sectors having the most companies [1] - The total market capitalization of the surveyed A-share companies includes 3 companies with a market cap over 50 billion yuan and 9 companies with a market cap under 10 billion yuan, such as Kuntai Co., Ltd. (001260), Tianlu Technology (301045), and Heshun Technology (301237) [1] Group 2 - In market performance, 21 of the surveyed stocks increased in the last 5 days, with Tongfu Microelectronics leading at a 37.12% increase, followed by Taili Technology at 16.35% and Hongfu Technology (301086) at 11.46% [2] - Among the surveyed stocks, 10 experienced net capital inflows in the last 5 days, with Tongfu Microelectronics seeing a net inflow of 3.01 billion yuan, the highest among them [2] - Four companies released annual performance forecasts, with three expecting profit increases; Tongfu Microelectronics anticipates a net profit of 1.225 billion yuan, representing a year-on-year increase of 80.79% [2]