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ABNORMAL RETURNS AT CALENDAR TURNING POINTS AT THE MALAYSIAN EXCHANGE Zainudin Arsad
STATISTIKA: Forum Teori dan Aplikasi Statistika Vol 4, No 2 (2004)
Publisher : Program Studi Statistika Unisba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/jstat.v4i2.908

Abstract

In recent years overwhelming evidence has been documented on the existence of abnormal stock returns. These anomaliestend to occur at turning points in time. Although these artificial moments have little impact on economy, investors maydeem them important and behave accordingly and consequently the notion that stock returns are random as claimed by theEfficient Market Hypothesis may be questioned. The primary objective of this paper is to investigate the January effect fora few indices at the Main Board of the Malaysian Exchange. The results broadly support similar evidence documented formany countries as the January effect appears to be present in our data set. Since there is no capital gain tax in Malaysia, thetax-loss selling hypothesis cannot explain the January effect. Instead, the anomaly may be attributed to the marketintegration hypothesis since the January effect is also a worldwide phenomenon.
DAY OF THE WEEK EFFECT AND STOCKMARKET VOLATILITY: FURTHER EVIDENCE FROMMALAYSIA EXCHANGE Zainudin Arsad; Mohd Shahrizan Othman
STATISTIKA: Forum Teori dan Aplikasi Statistika Vol 4, No 2 (2004)
Publisher : Program Studi Statistika Unisba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/jstat.v4i2.909

Abstract

This paper examines the day of the week anomalies at the Malaysian Exchange during various economic situations. Inparticular, the paper looks at the existence of day of the week effect for various indices, the popular benchmark CompositeIndex, the broader based Emas Index, smaller capital based Second Board Index, Financial Index of the Main Board andone of the newly created sectoral index of Trade and Services. Three estimation models are used to investigate thepresence of daily effect in these indices: the Ordinary Least Squares regression (OLS), Box and Jenkins ARIMA and theGARCH(p,q) models for capturing changing volatility in the stock returns. The OLS results reveal negative Monday meanreturns for each of the indices for the whole sample period. As expected during the Asian Economic Crisis period, themean returns are negative for each day of the week, with Thursday recording the largest negative returns. Negative meanreturns on Monday are not generally observed for each of the indices in recent years (during the World Economic Crisisand the following Recovery Period). When the changing volatility in the financial market is taken into account, theMonday negative returns remain significant during the whole sample period.