从星辰到算力，春季躁动基础仍在？

Report Industry Investment Rating - The report does not explicitly mention the industry investment rating [1][2][3] Core Viewpoints of the Report - The spring rally in the A-share market at the beginning of the year was driven by the fear of missing out, but after the regulatory adjustment of the minimum margin ratio for margin trading, the market shifted from a rapid rise to a slow bull market. The two - margin funds did not leave but switched from high - leverage to low - leverage sectors. The left - hand force of the spring rally came from institutional investors, while foreign capital and margin trading formed the right - hand acceleration, with foreign capital participating more actively [2][15] - The AI industry chain is the main direction where funds form a consensus. The logic of "storage driving computing power, and computing power leading to applications" is expected to be a popular investment direction. Insurance in the financial sector can contribute absolute returns, and industries such as chemicals, home appliances, and panels can be considered for portfolio investment [3][28][29] Summary According to the Directory Market Review: From High - Speed Growth to Active Cooling - At the beginning of the year, the A - share market experienced a spring rally. From the beginning of the year to January 13, the Sci - tech Innovation 50 index rose 9.33%, and sectors such as media, computer, and national defense and military industry led the gains. The proportion of margin trading turnover in the total turnover reached 11.5%, approaching the upper limit of the historical average plus twice the standard deviation [8] - On January 14, the regulatory authorities announced an increase in the margin ratio from 80% to 100%, which was a measure to cool down the over - heated market sentiment. After the adjustment, there was a "hot - cold switch" in the broad - based index and industry structure. In the broad - based index, leveraged funds shifted from small - cap to large - cap stocks. In the industry structure, funds shifted from high - volatility themes to undervalued blue - chips [11][12][13] Slow Bull Trend Established, Leverage Cooling, but Bullish Sentiment Remains - Margin trading accelerated the spring rally but was not the dominant force. The spring rally was mainly driven by domestic institutional investors, with foreign capital and margin trading accelerating on the right - hand side, and foreign capital's participation was more significant. Comparing the trading volume ratios of 9 trading days before and after New Year's Day, the trading volume ratio of north - bound funds increased from 10.2% to 11.6%, while that of margin trading only increased from 11.0% to 11.4% [15] - While broad - based ETFs experienced large - scale outflows, theme - based ETFs continued to see inflows. For example, from January 14 to 16, the average daily net outflow of the CSI 300 ETF reached 14.71 billion yuan, while sectors such as non - ferrous metals, consumption, securities, and medical devices saw capital inflows [19][20] Tightening Micro - environment Accelerates Stock Game, with Both Offensive and Defensive Strategies - The marginal tightening of the micro - liquidity environment led to a stock game and structural optimization. The AI industry chain remained the main line, and some funds flowed back to sectors such as home appliances and chemicals with high safety margins [25] - The capital flow in the AI industry showed a "spiral relay" pattern, starting from storage chips and commercial aerospace, moving to AI applications, and then flowing back to storage and spreading to embodied intelligent robots. The semiconductor and media ETFs remained at the forefront, indicating strong market recognition of the AI industry chain [26] Index Uptrend Slows, Strong Focus on the AI Industry Chain - The AI industry chain's "storage - computing power - application" logic is expected to be a popular investment direction. The performance of US stocks provides a strong reference, and the continuous strength of overseas technology giants has raised the valuation ceiling for A - share counterparts [28] - Insurance in the financial sector can contribute absolute returns. It benefits from the bull market and the rise of the technology sector in terms of asset - side profitability and has defensive properties when offensive sectors adjust [28] - For portfolio investment, technology sectors can provide high returns and elasticity, while sectors such as chemicals, home appliances, and panels with improving fundamentals and healthy chip structures can be used as stable investment options [29]