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

Chen, Dylan Siong-Yain and Liew, Venus Khim-Sen (2019): Impacts of Unusual Market Activity Announcement on Stock Return: Evidence from The Ace Market in Malaysia.

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.

• Item Type: MPRA Paper
• Language: English
• Keywords: Unusual Market Activity; Ace Market; Stock Return; Bursa Malaysia
• Subjects: G - Financial Economics > G1 - General Financial Markets > G14 - Information and Market Efficiency ; Event Studies ; Insider Trading

References

Azzam, M., & Karlquist, J. (2008). Effects of allegations of corporate misconduct on share value - A study on the Swedish market. (Unpublished thesis). Stockholm School Of Economics.

Bodie, Z., Kane, A., & Marcus, A. J. (2009). Investments (8th edition). New York: McGraw-Hill.

Dumay, J. C., & Tull, J. A. (2007). Intellectual capital disclosure and price-sensitive Australian Stock Exchange announcements. Journal of Intellectual Capital, 8(2), 236-255.

Gerace, D., Chew, C., Whittaker, C., & Mazzola, P. (2014). Stock market manipulation on the Hong Kong stock exchange. Australasian Accounting, Business and Finance Journal 8(7).

Hanafi, M. M. (2010). Unusual market activity. A study of price manipulation on the Indonesian stock exchange. Gadjah Mada International Journal of Business, 12(2), 159-187.

Huang, Y. C., Chen, C. Y., & Cheng, Y. J. (n.d). Stock manipulation and its impact on market quality. (Unpublished working paper). National Kaohsiung First University of Science and Technology, Kaohsiung 811, Taiwan, ROC.

Jiang, G., Mahoney, P. G., & Mei, J. (2005). Market manipulation: A comprehensive study of stock pools. Journal of Financial Economics 77(1), 147-170.

Jong, F. (2007). Event studies methodology. Retrieved from http://www. tilburguniversity.edu/research/institutes-and-research-groups/center/staff/dejong/ preprints/eventstudies.pdf.

Kaltchev, G. D. (2009). Securities litigation and stock returns: An event study. International Conference on Applied Economics – ICOAE 2009.

Khotari, S. P., & Warner, J. B. (2006). Econometrics of event studies. In B.E. Eckbo (Ed.) Handbook of Corporate Finance: Empirical Corporate Finance (Chapter 1). North-Holland Elsevier. KPMG. (2009). KPMG Malaysia Fraud Survey.

Khwaja, A. I., & Mian, A. (2005). Unchecked intermediaries: Price manipulation in an emerging stock market. Financial Economics, 78(1), 203-241.

Leinweber, D. J., & Madhavan, A. N. (2001). Three hundred years of stock market manipulations. The Journal of Investing 10(2), 7–16.

Patell, J. (1976). Corporate forecasts of earnings per share and stock price behaviour: Empirical tests, Journal of Accounting Research, 14(2), 246-76.

Perry, J. & Fontnouvelle, P. (2005). Measuring reputational risk: The market reaction to operational loss announcements. (Unpublished working paper). Federal Reserve Bank of Boston.

Ray, K. K. (2010). Stability of beta over market phases: An empirical study on Indian stock market. International Research Journal of Finance and Economics, 50, 174-189.

Rhode, P. W., & Strumpf, K. S. (2007). Manipulating political stock markets: A field experiment and a century of observational data. (Unpublished working paper). University of Arizona and NBER and University of Kansas School of Business.

Shaheen, I. (2006). Stock market reaction to acquisition announcements using an event study approach. (Unpublished doctoral dissertation) Franklin and Marshall College, Pennsylvania.

Voon, S. L., Puah, C. H., & Entebang, H. (2008). Corporate crime announcement effects on stock performance: An empirical study in Malaysia. Journal of Economic Cooperation, 29(2), 15-28.

Yanuarti, I., & Mulyono. (2012). The effect of unusual moving activity announcement on stock return and trading volume in Indonesia stock exchange, Economics, Business, and Accountancy Ventura, 16(3), 423-430.

Zhao, X. (2014). Trade-based manipulation or speculative bubble: A case study. International Business & Economics Research, 13(4).