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Market reaction to grouping equities in stock markets: An empirical analysis on Borsa Istanbul

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Date

2017

Authors

Pirgaip, Burak
Yıldız, Yılmaz
Karan, Mehmet Baha

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Publisher

Elsevier

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Events

Abstract

The main aim of this study is to investigate the market reaction to stock grouping announcements in Borsa Istanbul which requires stocks to be classified into groups "A ", "B" and "C" according to their market capitalization and floating rates. By utilizing event study analysis, our results suggest that grouping announcements have significant effect on stock prices and trading volume. The event day positive (negative) relationship between abnormal return and volume for the upgraded (downgraded) stocks supports the downward sloping demand curve hypothesis. Moreover, findings also suggest that stocks which are upgraded to Group A are exposed to more attention which is in line with the attention hypothesis. The reverse is valid for the downgraded firms. We find no evidence of price reversals and long-term symmetrical liquidity effect which lead us to reject price pressure and liquidity hypotheses. Finally, we reach controversial evidence for the information hypothesis

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Keywords

Equity Grouping, Regulation, Price and Volume Effects, Demand Curves, Price, Deletions, Explanation, Information, Slope, S-and-P-500 Index Additions, Standard-and-Poor-500 List

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Citation

Yıldız, Yılmaz; Karan, Mehmet Baran; Pirgaip, Burak (2017). Market reaction to grouping equities in stock markets: An empirical analysis on Borsa Istanbul. Borsa İstanbul Review, 17(4), 216-227.

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Source

Borsa İstanbul Review

Volume

17

Issue

4

Start Page

216

End Page

227