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Impacts of Unusual Market Activity Announcement on Stock Return: Evidence from The Ace Market in Malaysia

Author

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  • Chen, Dylan Siong-Yain
  • Liew, Venus Khim-Sen

Abstract

This study examines the effect of Unusual Market Activity (UMA) announcement on stock return in Malaysian market with a sample of 62 companies listed on the ACE market at Bursa Malaysia for the period of 2007-2015. This study employs event study methodology to show that there were few days in which the average abnormal return (AAR) and cumulative average abnormal return (CAAR) are statistically significant. In addition, this study also further investigates the abnormal return (AR) and cumulative abnormal return (CAR) for individual companies. It was found that majority of the stocks returns fell significantly 30 days after the UMA announcement. The magnitude of the fall in returns ranges from 4% to 234%. Hence, it is not advisable for investors to buy stock after UMA announcement.

Suggested Citation

  • Chen, Dylan Siong-Yain & Liew, Venus Khim-Sen, 2019. "Impacts of Unusual Market Activity Announcement on Stock Return: Evidence from The Ace Market in Malaysia," MPRA Paper 107989, University Library of Munich, Germany.
    • Handle: RePEc:pra:mprapa:107989
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    File URL: https://mpra.ub.uni-muenchen.de/107989/1/MPRA_paper_107989.pdf
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    References listed on IDEAS

    as
    1. Patell, Jm, 1976. "Corporate Forecasts Of Earnings Per Share And Stock-Price Behavior - Empirical Tests," Journal of Accounting Research, Wiley Blackwell, vol. 14(2), pages 246-276.
    2. Jiang, Guolin & Mahoney, Paul G. & Mei, Jianping, 2005. "Market manipulation: A comprehensive study of stock pools," Journal of Financial Economics, Elsevier, vol. 77(1), pages 147-170, July.
    3. Khwaja, Asim Ijaz & Mian, Atif, 2005. "Unchecked intermediaries: Price manipulation in an emerging stock market," Journal of Financial Economics, Elsevier, vol. 78(1), pages 203-241, October.
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    Cited by:

    1. Liew, Venus Khim-Sen, 2020. "Abnormal returns on tourism shares in the Chinese stock exchanges amid COVID-19 pandemic," MPRA Paper 107987, University Library of Munich, Germany.

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    More about this item

    Keywords

    Unusual Market Activity; Ace Market; Stock Return; Bursa Malaysia;
    All these keywords.

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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