• ISSN: 2010-023X (Print)
    • Abbreviated Title: Int. J. Trade, Economics and Financ.
    • Frequency: Quaterly
    • DOI: 10.18178/IJTEF
    • Editor-in-Chief: Prof.Tung-Zong (Donald) Chang
    • Managing Editor: Ms. Shira. W. Lu
    • Abstracting/ Indexing:  Crossref, Electronic Journals Library , EBSCO
    • E-mail: ijtef.editorial.office@gmail.com
HOME > Archive > 2022 > Volume 13 Number 4 (Aug. 2022) >
IJTEF 2022 Vol.13(4): 91-106 ISSN: 2010-023X
DOI: 10.18178/ijtef.2022.13.4.731

Performances and Changes in the Stock Market of Four Electronic Companies during Covid-19 and Their Future Market Predictions

Jialin Guo

Abstract—The electronic industry has grown faster and faster in recent years. The market is huge, and demand is constantly high for different services. This paper looks at the stocks of four different companies that belong to the electronic industry: Nintendo, Sony, AMC and IBM. Although all belong to the same category, each of them focus on different fields and provide various services. We look at the performances of their stock during three major timberlines that split up into three periods: before, during and after covid-19. The daily returns of these stocks are analyzed to determine their consistency with three fitted model distributions: maximum-likelihood fitted normal, robust-fitted normal, and maximum-likelihood fitted Laplace. Through making hypotheses and careful analysis of the goodness-of-fit of these models, we draw the following conclusions: NTDOY and SNE are best fit by the Laplace MLE Model; AMC and IBM are best fit by the combination of Robust and Laplace MLE Model. Based on these analyses and evaluation of each stock's general trend, we predict that each company will experience a raise in stock price in later quarters of 2021.

Index Terms—Stock market, Covid-19, nintendo, Sony, IBM, AMC, daily percent return.

The author is with Boston University, USA (e-mail: sally21@bu.edu).

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Cite: Jialin Guo, "Performances and Changes in the Stock Market of Four Electronic Companies during Covid-19 and Their Future Market Predictions," International Journal of Trade, Economics and Finance vol.13, no.4, pp. 91-106, 2022.

Copyright © 2022 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

 

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