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The Effects of New Equity Announcements on Stock Returns: An Examination on BIST

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  • Cumali Ünal
  • Bahadır Ergün

Abstract

The aim of this study is to examine the effect of rights and bonus issue announcements on stock returns. The study analyzes the companies included in the BIST-30 and BIST-50 indices between 2010 and 2022 and the companies that made capital increase announcements while they were included in these indices. In total, 84 different capital increase announcements of 35 companies were included in the study. In the study, the event study method was used and two different event windows were created as (-10, +10) and (-5, +5). At the end of the analysis, it was observed that new equity announcements affected stock returns. The study revealed that this effect was statistically significant negative. According to this situation, it can be said that the return expectations of the investors from the companies that announce the new equity issue should be negative and they should arrange their portfolios according to this result. According to the results of the research, it has been revealed that Borsa Istanbul is an inefficient market in semi-strong form.

Suggested Citation

  • Cumali Ünal & Bahadır Ergün, 2023. "The Effects of New Equity Announcements on Stock Returns: An Examination on BIST," Journal of Research in Economics, Politics & Finance, Ersan ERSOY, vol. 8(2), pages 224-243.
    • Handle: RePEc:ahs:journl:v:8:y:2023:i:2:p:224-243
    DOI: 10.30784/epfad.1243465
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    References listed on IDEAS

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    1. Cowan, Arnold R. & Sergeant, Anne M. A., 1996. "Trading frequency and event study test specification," Journal of Banking & Finance, Elsevier, vol. 20(10), pages 1731-1757, December.
    2. Campbell, John Y. & Lo, Andrew W. & MacKinlay, A. Craig & Whitelaw, Robert F., 1998. "The Econometrics Of Financial Markets," Macroeconomic Dynamics, Cambridge University Press, vol. 2(4), pages 559-562, December.
    3. István Ábel & Pierre L. Siklos & István P. Székely, 1998. "Money and Finance in the Transition to a Market Economy," Books, Edward Elgar Publishing, number 830.
    4. repec:eme:mrn000:01409170410784509 is not listed on IDEAS
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