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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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Details
Primary Language
English
Subjects
Finance
Journal Section
Research Article
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