THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODEL

The objective of this research is to analyze the effect of idiosyncratic risk to stock return on Indonesia Stock Exchange. To test these variables, the study applied two pass regression with time series data of stock return LQ45 and stock price index from January 2014 - December 2014. The estimation...

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Main Author: Arfiana Rachel
Format: Article
Language:English
Published: Department of Management, Faculty of Economics and Business, Universitas Surabaya 2014-09-01
Series:Manajemen dan Bisnis
Subjects:
Online Access:https://www.journalmabis.org/mabis/article/view/242
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author Arfiana Rachel
author_facet Arfiana Rachel
author_sort Arfiana Rachel
collection DOAJ
description The objective of this research is to analyze the effect of idiosyncratic risk to stock return on Indonesia Stock Exchange. To test these variables, the study applied two pass regression with time series data of stock return LQ45 and stock price index from January 2014 - December 2014. The estimation method used in the first pass regression was selected by characteristics of the return data, that is EGARCH (1,1) method for heterokedasticity data and Ordinary Least Squares for constant variance data. Specifications on the second pass regression models using cross section data, that is month by month cross sectional regression of 30 stock portfolios, which aim to identify unsystematic risk role in explaining the behavior of the return from stock portfolio. The findings of this study indicate that unsystematic risk has insignificant effect on stock return. These findings support the statement postulated in Capital Asset Pricing Model (CAPM), that the only relevant risk in explaining the return of stock only systematic risk, so there is no statistical evidence is strong enough to declare that the unsystematic risk can play a role in explaining the movement of stock return.
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spelling doaj.art-d8aed5adac34479dade08cfeffaf2ede2023-02-01T07:29:33ZengDepartment of Management, Faculty of Economics and Business, Universitas SurabayaManajemen dan Bisnis1412-37892477-17832014-09-0113210.24123/jmb.v13i2.242205THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODELArfiana Rachel0Faculty of Economics, Universitas Katolik Indonesia Atma JayaThe objective of this research is to analyze the effect of idiosyncratic risk to stock return on Indonesia Stock Exchange. To test these variables, the study applied two pass regression with time series data of stock return LQ45 and stock price index from January 2014 - December 2014. The estimation method used in the first pass regression was selected by characteristics of the return data, that is EGARCH (1,1) method for heterokedasticity data and Ordinary Least Squares for constant variance data. Specifications on the second pass regression models using cross section data, that is month by month cross sectional regression of 30 stock portfolios, which aim to identify unsystematic risk role in explaining the behavior of the return from stock portfolio. The findings of this study indicate that unsystematic risk has insignificant effect on stock return. These findings support the statement postulated in Capital Asset Pricing Model (CAPM), that the only relevant risk in explaining the return of stock only systematic risk, so there is no statistical evidence is strong enough to declare that the unsystematic risk can play a role in explaining the movement of stock return.https://www.journalmabis.org/mabis/article/view/242stock return, beta, idiosyncratic risk, capm
spellingShingle Arfiana Rachel
THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODEL
Manajemen dan Bisnis
stock return, beta, idiosyncratic risk, capm
title THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODEL
title_full THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODEL
title_fullStr THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODEL
title_full_unstemmed THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODEL
title_short THE RISK OF BEING UNSYSTEMATIC AND STOCK RETURNS: THE EMPIRICAL TEST ON CAPITAL VALIDITY OF CAPITAL ASSET PRICING MODEL
title_sort risk of being unsystematic and stock returns the empirical test on capital validity of capital asset pricing model
topic stock return, beta, idiosyncratic risk, capm
url https://www.journalmabis.org/mabis/article/view/242
work_keys_str_mv AT arfianarachel theriskofbeingunsystematicandstockreturnstheempiricaltestoncapitalvalidityofcapitalassetpricingmodel
AT arfianarachel riskofbeingunsystematicandstockreturnstheempiricaltestoncapitalvalidityofcapitalassetpricingmodel