金融工程日报：沪指收涨迎7连阳，半导体产业链爆发-20250812

The provided content does not include any specific quantitative models or factors, nor does it detail their construction, evaluation, or backtesting results. The documents primarily focus on market performance, sector and concept index movements, market sentiment, capital flows, ETF premiums/discounts, block trading, and institutional activity. These are descriptive analyses and do not involve the development or testing of quantitative models or factors.