Borsa İstanbul’da Hisse Geri Alım Kararlarına İlişkin Ampirik Bir Analiz

Abstract

Bu çalışma, hisse geri alım kararlarının 2022-2023 yıllarında Borsa İstanbul'da işlem gören 95 şirketin hisse değerleri üzerindeki etkisini analiz etmektedir. Çalışmanın amacı, hisse geri alım kararlarının hisse fiyatları ve piyasa performansı üzerindeki etkilerini değerlendirmektir. Analizlerde hisse geri alım duyuruları öncesi ve sonrası 5, 10 ve 21 günlük kümülatif getiriler incelenmiştir. Veriler normal dağılmadığı için çalışmada öncelikli olarak parametrik olmayan testler kullanılmıştır. Hisse geri alım duyuruları öncesi ve sonrası getiri farklılıklarını değerlendirmek için Wilcoxon İşaretli Sıralar Testi, hisse geri alım kararları ile BIST-100 endeks getirileri arasındaki ilişkiyi incelemek için Spearman Korelasyon Testi uygulanmıştır. Örneklem büyüklüğünün fazla olması (n=95) nedeniyle bağımlı örneklem t-testi de destekleyici bir yöntem olarak kullanılmıştır. Sonuçlar, hisse geri alım kararlarının hisse değerleri üzerinde istatistiksel olarak anlamlı ve pozitif bir etkiye sahip olduğunu göstermektedir. Özellikle 10 ve 21 günlük dönemlerde hisse getirilerinde önemli bir artış gözlenmektedir. Ayrıca, hisse geri alım kararları ile BIST-100 endeks getirileri arasında pozitif bir korelasyon bulunmaktadır.

Keywords

• BİST
• Hisse Geri Alımı
• Hisse Değeri
• Kümülatif Getiri
• Sermaye Piyasaları

An Empirical Analysis of Share Buyback Decisions in Borsa Istanbul

Abstract

This study analyses the impact of share buyback decisions on the share values of 95 companies traded on Borsa Istanbul in 2022-2023. The aim of the study is to evaluate the effects of share buyback decisions on share prices and market performance. In the analysis, 5, 10, and 21-day cumulative returns before and after the share buyback announcements are examined. Since the data are not normally distributed, nonparametric tests are primarily used in the study. The Wilcoxon Signed Rank Test was applied to evaluate the return differences before and after the share buyback announcements, and the Spearman Correlation Test was applied to examine the relationship between share buyback decisions and BIST-100 index returns. Due to the large sample size (n = 95), the dependent sample t-test was also used as a supporting method. The results show that share buyback decisions have a statistically significant and positive effect on share values. Especially in the 10 and 21-day periods, a significant increase in share returns is observed. Moreover, there is a positive correlation between share buyback decisions and BIST-100 index returns.

Keywords

• BIST
• Capital Markets
• Cumulative Return
• Repurchase
• Stock Value

References

1. Albaity, M. and Said, D.S. (2016). Impact of open-market share repurchases on long-term stock returns: Evidence from the Malaysian market. SAGE Open, 6(4). https://doi.org/10.1177/2158244016670199
2. Alquhaif, A., Al-Gamrh, B. and Latif, R.A. (2020). An overview of share buybacks: A descriptive case from Malaysia. Journal of Behavioral and Experimental Finance, 28, 100415. https://doi.org/10.1016/j.jbef.2020.100415
3. Arora, R.K. (2019). Why do Indian companies repurchase their shares? Global Business Review, 23(1), 205-217. https://doi.org/10.1177/0972150919854935
4. Arsoy, M.F. (2017). Hisse geri alım programı duyurularının şirketlerin piyasa değerlerine etkisi: Borsa İstanbul örneği. Eskişehir Osmangazi Üniversitesi İktisadi ve İdari Bilimler Dergisi, 12(2), 1-22. https://doi.org/10.17153/oguiibf.318636
5. Autore, D.M., Clarke, N. and Liu, B. (2019). Activist investors and open market share repurchases. Journal of Banking and Finance, 107, 105614. https://doi.org/10.1016/j.jbankfin.2019.105614
6. Baker, M. and Wurgler, J. (2004). A catering theory of dividends. The Journal of Finance, 59(3), 1125-1165. https://doi.org/10.1111/j.1540-6261.2004.00658.x
7. Chee, C.M., Razak, N.H.B.A. and Noordin, B.A.B.A. (2022). Do share repurchases distort stock prices? Evidence from the United States and Malaysia. Studies in Microeconomics, 10(2), 131-154. https://doi.org/10.1177/23210222211024380
8. Chen, H.C., Harper, J.T. and Iyer, S.R. (2018). Economic shock and share repurchases. The North American Journal of Economics and Finance, 44, 254-264. https://doi.org/10.1016/j.najef.2018.01.006

9. Drousia, A., Episcopos, A. and Leledakis, G.N. (2019). Market reaction to actual daily share repurchases in Greece. The Quarterly Review of Economics and Finance, 74, 267-277. https://doi.org/10.1016/j.qref.2019.01.007
10. Gibbons, J.D. and Chakraborti, S. (2014). Nonparametric statistical inference: Revised and expanded. USA: CRC press.
11. Hogg, R.V., McKean, J.W. and Craig, A.T. (2013). Introduction to mathematical statistics (Eighth Edition). UK: Pearson.
12. Ikenberry, D., Lakonishok, J. and Vermaelen, T. (1995). Market underreaction to open market share repurchases. Journal of Financial Economics, 39(2-3), 181-208. https://doi.org/10.1016/0304-405X(95)00826-Z
13. Keller, G. and Warwick, B. (1997). Statistics for management and economics (4th Edn). Journal of the Operational Research Society, 48(9), 963. https://doi.org/10.1057/palgrave.jors.2600936
14. Kim, K.S. and Park, Y.W. (2021). Long-term performance following share repurchase, signaling costs and accounting transparency: Korean evidence. Review of Accounting and Finance, 20(2), 143-166. https://doi.org/10.1108/RAF-07-2020-0191
15. Liu, H. and Swanson, E.P. (2016). Is price support a motive for increasing share repurchases? Journal of Corporate Finance, 38, 77-91. https://doi.org/10.1016/j.jcorpfin.2016.03.011
16. Manconi, A., Peyer, U. and Vermaelen, T. (2019). Are buybacks good for long-term shareholder value? Evidence from buybacks around the world. Journal of Financial and Quantitative Analysis, 54(5), 1899-1935. https://doi.org/10.1017/S0022109018000984
17. Merkezi Kayıt Kuruluşu. (2023). Veri analiz platformu (VAP). Erişim adresi: https://www.vap.org.tr/
18. Miller, M. and Prondzinski, D. (2017). Stock repurchases: Do they add to shareholder value over time? Journal of Accounting and Finance, 17(4), 48-62. Retrieved from http://www.na-businesspress.com/
19. Mukherjee, P. and Chatterjee, C. (2019). Does share repurchase announcement lead to rise in share price? Evidence from India. Global Business Review, 20(2), 420-433. https://doi.org/10.1177/0972150918825327
20. Stephens, C.P. and Weisbach, M.S. (1998). Actual share reacquisitions in open‐market repurchase programs. The Journal of Finance, 53(1), 313-333. https://doi.org/10.1111/0022-1082.115194
21. Wang, H.B., Nguyen, C. and Dinh, N. (2020). Operating performance and long‐run stock returns following share repurchase: Evidence from an emerging market. Journal of Corporate Accounting and Finance, 31(3), 32-47. https://doi.org/10.1002/jcaf.22450
22. Wang, H.B., Nguyen, C. and Rafi, N.A. (2021). The effectiveness of price-stabilizing share buybacks: Evidence from listed firms in Vietnam. The North American Journal of Economics and Finance, 57, 101436. https://doi.org/10.1016/j.najef.2021.101436
23. Yağcılar, G.G. ve Arslan, Z. (2018). İşletmelerin geri alım duyurularının hisse senedi getirilerine etkisi: BİST 100 şirketleri üzerine bir olay çalışması. Süleyman Demirel Üniversitesi Sosyal Bilimler Enstitüsü Dergisi, 1(32), 450-474. Erişim adresi https://dergipark.org.tr/tr/pub/sbe
24. Zhang, H. (2005). Share price performance following actual share repurchases. Journal of Banking & Finance, 29(7), 1887-1901. https://doi.org/10.1016/j.jbankfin.2004.06.038