An Empirical Study of CAPM’s Applicability to Rare Earth Permanent Magnet Material Stocks


Rare earth permanent magnet material
Stock market
Systematic risk




China has the world’s largest reserves of rare earth elements. Rare earth permanent magnet material has always been one of the popular industries in the investment market. CAPM is the basic asset-pricing model in financial economics. There are a number of studies conducted to examine the applicability of CAPM to stock markets in different industries and to investigate the modification method to improve the model’s prediction accuracy. In this study, seven leading enterprises in China’s rare earth permanent magnet material industry listed on the A-share market were selected as the research subjects. Based on CAPM, regression analysis was conducted on the monthly data from March 2016 to February 2022. The results demonstrated that using the ? coefficient to explain the risk of China’s rare earth permanent magnet industry is ineffective. The ultimate benefit was less affected by market indexes but mainly by non-systematic risks. CAPM has low applicability to China’s rare earth permanent magnet material industry and requires further improvement. Nevertheless, CAPM still has some guiding significance in making enterprise comparisons and investment decisions.


Hu B, Rao X, Niu E, et al., 2018, Technology Progress and Industry Development of Rare-Earth Permanent Magnets. Materials China, 37(9): 653-661.

Deng R, Liang D, Huang G, et al., 2021, Analysis of NdFeB Rare Earth Permanent Magnet Materials. China Plant Engineering, 06: 242-243.

Sharpe WF, 1964, Capital Asset Prices: A Theory of Market Equilibrium Under Conditions of Risk. Journal of Finance, 19(3): 425-442.

Wang Y, 2009, Research on Test Method and Hypothesis of CAPM. Statistics and Information Forum, 24(06): 8-11.

Gao X, Han X, 2009, CAPM Model Research Status and the Empirical Analysis. Modern Commercial and Trade Industry, 21(24): 154-155.

Zhu S, 2010, Empirical Studies on the CAPM in China Capital Market. Statistics and Information Forum, 25(08): 95-99.

Yang S, Zheng Z, 2021, An Empirical Test of the Applicability of CAPM Model in A-Share Market. Finance Theory and Teaching, 6: 39-44.

Wang Y, Wang X, Wang J, 2019, Empirical Study on Chinese Baijiu Listed Companies Based on CAPM Model. Times Finance, 3: 38-40.

Chen S, 2020, Empirical Study on China’s Baijiu Industry Based on CAPM Model. Modern Marketing, 7: 148-149.

Mao Y, 2021, Empirical Research on the Applicability of CAPM to China’s Semiconductor Industry. Investment and Entrepreneurship, 32(1): 35-37.

Wu X, 2021, Empirical Analysis of Transportation and Logistics Industry Stocks Based on CAPM Model. Logistics Engineering and Management, 43(2): 108-110.

Guo J, Li J, 2015, Applicability and Revision of CAPM: A Literature Review. Financial Theory and Practice, 2: 93-98.