【金工】市场仍待上攻合力——金融工程市场跟踪周报20250629（祁嫣然/张威）

Market Overview - The A-share market experienced a strong rally this week, with the North Securities 50 index leading the major broad-based indices with a weekly increase of 6.84% [3] - Major indices saw comprehensive gains, with the Shanghai Composite Index rising by 1.91%, the CSI 300 by 1.95%, and the ChiNext Index by 5.69% [4] Trading Sentiment - The market's strong rise was accompanied by a steady increase in trading volume, indicating improved liquidity [3] - The volume timing indicator for the North Securities 50 remains cautious, while other major indices have shifted to a bullish signal [3] Fund Flow - ETF funds showed signs of profit-taking, with an overall net outflow from equity ETFs, particularly in the Sci-Tech Innovation Board and small-cap stocks [3] - Southbound capital saw a net inflow of 28.381 billion HKD, with the Shanghai Stock Connect contributing 13.489 billion HKD and the Shenzhen Stock Connect 14.892 billion HKD [10] Valuation Metrics - As of June 27, 2025, broad-based indices such as the Shanghai Composite, CSI 300, CSI 500, and CSI 1000 are at "moderate" valuation percentiles, while the ChiNext Index is at a "safe" valuation percentile [5] - In terms of sector valuation, industries like electricity and public utilities, home appliances, food and beverage, agriculture, non-bank financials, and transportation are classified as "safe" [6] Volatility Analysis - The cross-sectional volatility of the CSI 300 and CSI 500 index constituents increased week-on-week, indicating an improved short-term Alpha environment [7] - Conversely, the cross-sectional volatility of the CSI 1000 index constituents decreased, suggesting a weakening short-term Alpha environment [7] Institutional Focus - The top five stocks attracting the most institutional attention this week were Huichuan Technology (151 institutions), Weigao Medical (144), Jingbeifang (79), AVIC Chengfei (66), and Cangge Mining (64) [9]