Group 1 - The core point of the news is that Biyimi's stock price has been declining for four consecutive days, with a total drop of 10% during this period, currently trading at 50.53 yuan per share and a market capitalization of 3.529 billion yuan [1] - Biyimi, established on May 29, 2014, specializes in the design and sales of high-performance analog and mixed-signal integrated circuits, with its main business revenue composition being AC-DC (51.04%), driver ICs (44.33%), DC-DC (3.94%), and others (0.70%) [1] Group 2 - From the perspective of fund holdings, Huashang Fund has a significant position in Biyimi, with its Huashang Quality Selection Mixed A Fund (014558) increasing its holdings by 1,802 shares in the fourth quarter, now holding 39,800 shares, which accounts for 1.48% of the fund's net value [2] - The Huashang Quality Selection Mixed A Fund has a total scale of 59.4878 million yuan, with a year-to-date return of 10.05% and a one-year return of 69.2%, ranking 1271 out of 8,873 and 769 out of 8,119 respectively [2] - The fund manager, Deng Mo, has been in position for 10 years and 152 days, with the fund's total asset scale at 2.571 billion yuan, achieving a best return of 171.02% and a worst return of -41.84% during his tenure [2]