Araştırma Makalesi

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

Cilt: 2 Sayı: 1 19 Ekim 2020
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Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul

Öz

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.

Anahtar Kelimeler

Kaynakça

  1. Boudoukh, J. and R. Feldman and S. Kogan and M. Richardson (2013). Information, Trading and Volatility: Evidence from Firm-Specific News, 1-47.
  2. Brown, S. J. and J. B. Warner (1985). Using Daily Stock Returns: The Case of Event Studies. Journal of Financial Economics, 14, 3-31.
  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.
  8. Jory, S. R. and T. N. Ngo and D. Wang and A. Saha (2015). The Market Response to Corporate Scandals Involving CEOs. Applied Economics, 47 (17), 1723–1738.

Ayrıntılar

Birincil Dil

İngilizce

Konular

Finans

Bölüm

Araştırma Makalesi

Yazarlar

Hilal Hümeyra Özsu * Bu kişi benim
Türkiye

Yayımlanma Tarihi

19 Ekim 2020

Gönderilme Tarihi

16 Mayıs 2020

Kabul Tarihi

24 Ağustos 2020

Yayımlandığı Sayı

Yıl 2020 Cilt: 2 Sayı: 1

Kaynak Göster

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, ve 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 (01 Ekim 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, ve H. B. Erdüzen Yılmaz, “Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul”, BES JOURNAL, c. 2, sy 1, ss. 15–23, Eki. 2020, [çevrimiçi]. Erişim adresi: 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 (01 Ekim 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, vd. “Firm-Specific News or Stock Recommendations? Evidence from the Borsa Istanbul”. International Journal of Business and Economic Studies, c. 2, sy 1, Ekim 2020, ss. 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]. 01 Ekim 2020;2(1):15-23. Erişim adresi: https://izlik.org/JA34CW67MC

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