Research Article

Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul

Volume: 2 Number: 1 October 19, 2020
EN TR

Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul

Abstract

The aim of this study is to examine whether investors can earn abnormal returns based on firm-specific news in general, and stock recommendations given by market makers in particular. To measure the stock market reaction, at first, the event study is conducted for pre- and post-event windows covering the periods from January 2019 to April 2020. In this context, stock returns traded on Borsa Istanbul and BIST 30 Index as market indicator are used. The results indicate that while positive firm-specific news do not provide valuable information, investors are affected from negative news during post-event days. Then, to enchance and compare the results, a regression analysis is estimated to examine whether the stock recommendations have an additional effect on stock returns at the day of news announced. This analysis has provided that investment decisions based on the recommendations of the market makers would generate abnormal returns to investors. In addition, the market reacts stronger to negative news, contrary to the positive ones. These results are inconsistent with the assumptions of efficient market hypothesis.

Keywords

References

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  3. Erdoğan, O. and D. Palmon and A. Yezegel (2008). The News of No News in Stock Markets.http://ssrn.com/abstract=1860181, 1-33.
  4. Erdoğan, O. and D. Palmon and A. Yezegel (2010). Performance of Analyst Recommendations in the Istanbul Stock Exchange.http://ssrn.com/abstract=1003745.
  5. Eyüboğlu, K. andH. İ. Bulut (2016). Şirketlere Özgü HaberlerinHissePerformansınaEtkisi: Bist-30 ŞirketleriÖrneği. Uluslararası İktisadi ve İdari İncelemeler Dergisi, 16, 113-138.
  6. Eyüboğlu, K. and H. İ. Bulut (2017). The Effects of Business Magazine Recommendations on the Stock Prices in Turkey: Case of Para. Anadolu University Journal of Social Sciences, 17 (1), 109-121.
  7. Fama, E. F. (1965). Random Walks in Stock Market Prices. Financial Analysts Journal, 21(5), 55-59.
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Details

Primary Language

English

Subjects

Finance

Journal Section

Research Article

Authors

Hilal Hümeyra Özsu * This is me
Türkiye

Publication Date

October 19, 2020

Submission Date

May 16, 2020

Acceptance Date

August 24, 2020

Published in Issue

Year 2020 Volume: 2 Number: 1

APA
Özsu, H. H., Hashemi, N., & Erdüzen Yılmaz, H. B. (2020). Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul. International Journal of Business and Economic Studies, 2(1), 15-23. https://izlik.org/JA34CW67MC
AMA
1.Özsu HH, Hashemi N, Erdüzen Yılmaz HB. Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul. BES JOURNAL. 2020;2(1):15-23. https://izlik.org/JA34CW67MC
Chicago
Özsu, Hilal Hümeyra, Neda Hashemi, and Halime Büşra Erdüzen Yılmaz. 2020. “Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul”. International Journal of Business and Economic Studies 2 (1): 15-23. https://izlik.org/JA34CW67MC.
EndNote
Özsu HH, Hashemi N, Erdüzen Yılmaz HB (October 1, 2020) Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul. International Journal of Business and Economic Studies 2 1 15–23.
IEEE
[1]H. H. Özsu, N. Hashemi, and H. B. Erdüzen Yılmaz, “Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul”, BES JOURNAL, vol. 2, no. 1, pp. 15–23, Oct. 2020, [Online]. Available: https://izlik.org/JA34CW67MC
ISNAD
Özsu, Hilal Hümeyra - Hashemi, Neda - Erdüzen Yılmaz, Halime Büşra. “Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul”. International Journal of Business and Economic Studies 2/1 (October 1, 2020): 15-23. https://izlik.org/JA34CW67MC.
JAMA
1.Özsu HH, Hashemi N, Erdüzen Yılmaz HB. Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul. BES JOURNAL. 2020;2:15–23.
MLA
Özsu, Hilal Hümeyra, et al. “Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul”. International Journal of Business and Economic Studies, vol. 2, no. 1, Oct. 2020, pp. 15-23, https://izlik.org/JA34CW67MC.
Vancouver
1.Hilal Hümeyra Özsu, Neda Hashemi, Halime Büşra Erdüzen Yılmaz. Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul. BES JOURNAL [Internet]. 2020 Oct. 1;2(1):15-23. Available from: https://izlik.org/JA34CW67MC


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