Abstract
We studied the optimal weighting allocation for a portfolio of stocks in China's new energy vehicle industry, using data on circulation market value, price-to-earnings ratio P/E, growth of net profit after deductions, and institutional position share of the new energy industry for the three years 2019-2021. The return was also considered from the above four dimensions. Combining the above four dimensions, a better model for determining the weight of the new energy vehicle stock portfolio is obtained.
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