Analysing Stock Market Performances of Energy Companies Traded on Borsa Istanbul in Terms of Sustainability

Authors : Samet Buyukyilmaz, Ayşegül Ak

Pages : 21-36

Doi:10.25095/mufad.1548130

View : 71 | Download : 70

Publication Date : 2025-01-26

Article Type : Research Paper

Abstract :This study examined whether the announcement of the inclusion of companies in the sustainability index had an effect on the stock market performance of the companies. Research focuses on analyzing the potential impact of the announcement that 9 Turkish companies including in the Borsa Istanbul Sustainability Index, which is a part of both Elektrik and Sustainability Indexes in December 2023. The effects of the public notification were examined with the Case Study Method. Before and after 5 and 10 business days from the announcement date of stock closing data were examined. As a result of the analysis, it was concluded that there was an abnormal negative return in the companies with the notification of entering the Sustainability index. Since sustainability is a long-term process, it’s important for companies to have sufficient financial strength to meet and sustain the criteria specified in the methodology.
Keywords : borsa performansı, enerji şirketi, sürdürülebilirlik endeksi, Borsa İstanbul