突发重磅调整！再创史上之最

Group 1 - The core point of the news is the significant increase in trading activity in the A-share market, driven by a surge in leverage and the introduction of a new regulation that raises the margin requirement for financing to 100% [10][12][21] - The software ETF (515230) has shown a strong performance, with a 3.89% increase on the day and a total gain of 21.8% over the first eight trading days of the year, indicating a bullish trend in the software sector [8][10] - The introduction of the GEO (Generative Engine Optimization) concept has attracted substantial investment into software and media sectors, as it is expected to lower customer acquisition costs and benefit marketing and advertising companies [7][10] Group 2 - The recent adjustment in the financing margin ratio aims to cool down the overheated A-share market, which has seen a rapid increase in trading volume and leverage, with net purchases of over 1.4 trillion yuan in the first week of the year [10][12][21] - The A-share market has experienced record trading volumes, with a single-day turnover exceeding 4 trillion yuan, highlighting the intense market activity and investor enthusiasm [10][20] - The market is currently focused on AI applications, with various sectors such as financial technology, industrial manufacturing, and healthcare being potential beneficiaries of AI advancements, although the exact direction of the most successful applications remains uncertain [4][10]