微观流动性观察：A股外资流出压力减小，南向资金净流入超500亿港元

• The report primarily focuses on market liquidity, investor behavior, and fund flows, with no explicit mention of quantitative models or factors for analysis [3][5][6] - The data includes metrics such as market valuation ratios (e.g., PE, PB), trading activity (e.g., turnover rates), and fund flows (e.g., ETF inflows/outflows, financing balances), but these are descriptive statistics rather than constructed quantitative factors or models [12][15][47] - The report highlights external influences like foreign capital flows, AH premium trends, and macroeconomic indicators (e.g., US-China interest rate spreads), but these are not tied to specific quantitative factor construction or model testing [50][56][70]