Analysis and exploration of short-term and long-term stock portfolio return models based on the characteristics of valuation system with Chinese characteristics

The behavior of the stock market largely depends on the environment around the market, and the hot spot of the economic environment is the most sensitive factor affecting the stock trend. This research takes the valuation system with Chinese characteristics as the theoretical core, and constructs short-term and long-term portfolio models for state-owned listed companies. By integrating multi-dimensional market hot factors and fuzzy comprehensive evaluation model, the optimal combination of short-term stocks and long-term stocks is optimized and screened.