Empirical Analysis of the Portfolio Theory
DOI:
https://doi.org/10.62051/p9jr5746Keywords:
Portfolio Theory; Markowitz Model; Risk and Return.Abstract
As financial markets expand rapidly, investors face complex challenges while pursuing high returns. Therefore, it is necessary for investors to have knowledge of investment theory so that they can take a more rational approach to the actual investment process and decision-making. Portfolio theory, proposed by Markowitz, emphasizes the reduction of risk through diversified investment and becomes the basis of modern financial theory. This paper introduces the basic principles and assumptions of portfolio theory and shows how to apply this theory to portfolio optimization in Excel. Three stocks, Tesla (TSLA.O), Mediea Group (000333.SZ) and Wuliangye (000858.SZ), were selected as examples in this research. It is found that the Markowitz model performs well in reducing risk and increasing the Sharpe ratio, but there are problems with high computational complexity and ideal assumptions in practice. It can be found that portfolio theory plays a key role in asset allocation and risk management, providing some reference for investors and improving direction for future research.
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References
[1] Jiang Wenfei. Research on Optimal Portfolio based on Carbon Trading sector of China Stock Market —— Empirical research and optimization of Markowitz portfolio theory under principal component analysis [J]. China’s Collective Economy, 2023, (25): 83-86.
[2] Wu Weili, Zhao Liuyue. Research and Empirical Analysis of the Shenzhen Stock Exchange Optimal Portfolio based on Markowitz Portfolio Model [J]. Journal of Xuzhou Institute of Technology (Natural Science Edition), 2023, 38 (02): 17-28. DOI: 10.15873/j.cnki.jxit. 000511.
[3] Yang Z. An Analysis of the Applicability of the Markowitz Model in China [C] // Department of Economics, King’s Business School, King’s College London, Cardiff Business School, Business School. Proceedings of the 2023 International Conference on Management Research and Economic Development (part3). International Business School, Xi’an Jiaotong-Liverpool University, 2023: 6. DOI: 10.26914/c.cnkihy.2023.115076.
[4] Li M. Portfolio Construction Based on Optimization Model and Combination of Various Assets [C] // Wuhan Zhicheng Times Cultural Development Co., Ltd.. Proceedings of 2023 International Conference on Advances in Internet Marketing and Business Management (ICAMM 2023). Department of Business College, Stony Brook University, 2023: 7. DOI: 10.26914/c.cnkihy.2023.008070.
[5] Guo Rang. Research on securities portfolio optimization —— Based on asset pricing theory [J]. Business, 2024, (07): 115-118.
[6] MarkowitzHM. The early history of portfolio theory: 1600-1960. Financial analysts journal, 1999, 55 (4): 5-16.
[7] Wireless Technology & Innovation, Mobile Technology, Qualcomm. https://www.qualcomm.com/home, last accessed 2023/03/01.
[8] Luo Y. An Empirical Analysis of Portfolio Management [C] // Department of Economics, King’s Business School, King’s College London, Cardiff Business School, Business School. Proceedings of the 2023 International Conference on Management Research and Economic Development (part3). The University of Sydney, 2023: 7. DOI: 10.26914/c.cnkihy.2023.115058.
[9] Sharpe, W. F.: Capital asset prices: a theory of market equilibrium under risk conditions*. Journal of Finance 19 (3), 425–442 (1964).
[10] Joe Nison. Portfolio optimization study based on deep learning quantitative analysis [D]. Tianjin University of Technology, 2023. DOI: 10.27360/d.cnki.gtlgy.2023.001274.
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