Modelling the Relationship Between Sectoral Indices of the Stock Market in Nigeria (All Share Index vs. Other Index)
DOI:
https://doi.org/10.61143/umyu-jafr.1(1)2021.006Keywords:
Stock market, Sectoral index, Correlations analysis, Beta analysisAbstract
This study investigated the relationship between the returns of the sectoral indices using correlations analysis and beta analysis on weekly index values of sectoral indices with a base value of 157 points of specific sectors at the Nigerian Stock Exchange (NSE) from 04 October 2013 until 30 September 2016. The result shows that returns across various sectors tend to be correlated which indicated that risk diversification would be difficult. All Share Index returns have a positive relationship with the vast majority of the sectoral indices indicating that many indexes performance is alongside the 'All-share index’. Finding from the beta analysis shows that some indices are more volatile than the market while some are less volatile than the market. This study will aid investors/portfolio managers in reducing their portfolio risk, getting safe returns, providing specific investment opportunities, and direction for suitable investment decisions for the Nigerian market using such sectoral indices
References
Abiy H. & Chi G. (2014). Stock market development and economic growth: Empirical evidence for emerging market economies. International Journal of Economics, Finance and Management Sciences. 2 (2), 171-181. DOI: https://doi.org/10.11648/j.ijefm.20140202.19
Akhila, S. &Neeraja, K. (2018). A Comparative analysis of sectoral indices with NSE Index. International Journal of Engineering Technology Science and Research IJETSR www.ijetsr.com 5(3), 1458-1462.
Aromolaran, A. D., Taiwo, A., Adekoya, A. &Malomo, E. (2016). Index of industrial production an economic index of significant effect on Nigeria Stock Exchange All Share Index. IOSR Journal of Economics and Finance, 7(1), 31-36 www.iosrjournals.org
Besarria, C.N., Nóbrega, W. C. L., Alves, J.N., Almeida, F.F., Monteiro, V.S. & Paula, Â. A. (2016). Empirical analysis of the performance, risk and conditional correlation of the brazilian’s sectorial indexes. Race, Joaçaba, 15(3), 1065-1086. DOI: https://doi.org/10.18593/race.v15i3.10343
Dayaratne, D &Wijethunga, A. (2015). Stock market development and economic growth: War and post war evidence from Sri Lanka. 4th Annual International Research Conference -2015, 263-270
Durai R.S & Bhadurai, S.N. (2011). Correlation dynamics in Equity markets. Research in International Business and Finance, 25(1), 64-74. DOI: https://doi.org/10.1016/j.ribaf.2010.07.002
Gardner, J.C., McGowan, C.B, & Moeller, S.E. (2010). Calculating the beta coefficient and required rate of return for Coca-Cola. Journal of Business Case Studies, 6(6), 103-110 DOI: https://doi.org/10.19030/jbcs.v6i6.264
Gupta, H. (2017). A Study to find co-relationship of various sectorial indices return for different investment period. Asian J. Management, 8(3), 789 – 799. DOI: https://doi.org/10.5958/2321-5763.2017.00125.1
Joo, B & Bhat, I (2016). Examining the linkage between sectoral indices of NSE and volatility index: an empirical study. GJRIM 6(2), 28-37
Kurisetti, P. Yeldandi, S. &Perumandla, S. (2018). Test of co-integration and equilibrium relationship among the selected sectoral indices: empirical evidence from NSE India. Pacific Business Review International, 10 (11), 114-122.
Markowitz, H. M. (1952). Portfolio Selection. The Journal of Finance, 7(1), 77–91. DOI: https://doi.org/10.1111/j.1540-6261.1952.tb01525.x
Markowitz, H. M. (1991a). Foundations of portfolio theory. Journal of Finance, pages 469–477. DOI: https://doi.org/10.1111/j.1540-6261.1991.tb02669.x
Markowitz, H. M. (1991b). Portfolio selection: efficient diversification of investments. Blackwell Publishing.
Nagendra, M., Haritha, M & Ravi V (2014). NSE NIFTY and its correlation with sectorial indexes. International Journal of Conceptions on Management and Social Sciences 2(1), 9-13.
Ogunmuyiwa, M.S. (2015). Does inflation granger cause stock market performance in Nigeria? Developing Country Studies, 5(5), 139-142
Olaniyi, T. A. & Olabisi, O, Y. (2011). Causes and impacts of global financial crisis on the performance of Nigerian banks (a case study of selected banks). E3 Journal of Business Management and Economics, 2(4), 164-170.
Philipp, F. & Henri, L. (2007). International stock market correlations: A sectorial approach. Finance International Meeting AFFI-EUROFIDAI, Paris, December’ 2007 Paper.
Shanmugasundaram D., & Benedict, D. J. (2013). Volatility of the Indian sectoral indices–A study with reference to National Stock Exchange. International Journal of Marketing, Financial Services and Management Research, 2(8), 1-11
Sharma, C & Banerjee, K. (2015). A Study of correlations in the stock market. Department of Physics, BITS Pilani K.K Birla Goa Campus, N.H. 17B Zuarinagar, Goa 403726, India. DOI: https://doi.org/10.1016/j.physa.2015.03.061
Vazakidis A. &Adamopoulos, A. (2009). Stock market development and economic growth. American Journal of Applied Sciences, 6 (11), 1932-1940, 2009 ISSN 1546-9239 © 2009 Science Publications DOI: https://doi.org/10.3844/ajassp.2009.1932.1940
Vincent O. R. & Bamiro K. (2013). Fluctuations in Stock Market Prices: What went wrong, its Implications to Nigerian Economy? International Journal of Computer Applications, 63(19), 13-20. DOI: https://doi.org/10.5120/10573-5612
Graham, B. (2003). The intelligent investor. Harper Collins, 2003.
Rubinstein, M. (2002). Markowitz’s “Portfolio Selection”: A fifty-year retrospective. The Journal of Finance, 57(3), 1041–1045. DOI: https://doi.org/10.1111/1540-6261.00453
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