金融工程日报：股震荡反弹，医药板块爆发-2025-04-01

The provided content does not include any quantitative models or factors, nor does it provide details about their construction, evaluation, or backtesting results. The documents primarily focus on market performance, sector analysis, market sentiment, capital flows, ETF premiums/discounts, block trading, and institutional activity. These topics are descriptive and statistical in nature, without delving into quantitative modeling or factor analysis. Therefore, no relevant content can be summarized under the requested structure.