TÜRKİYE’DEKİ 6 ŞUBAT 2023 DEPREMLERİNİN BIST-30 ENDEKSİNDEKİ HİSSE SENEDİ GETİRİLERİ ÜZERİNDEKİ ETKİLERİNİN ANALİTİK OLARAK İNCELENMESİ

Yıl 2024, Sayı: 67, 99 - 103, 30.04.2024

Yaşar Köse Aliye Atay

https://doi.org/10.18070/erciyesiibd.1299945

Öz

Bu çalışmada 6 Şubat’taki Türkiye Kahramanmaraş merkezli depremler ile BIST-30’da yer alan şirketlerin hisse senetlerinin fiyatları ve getirileri arasında bir ilişkinin olup olmadığının belirlenmesi için olay veya vaka çalışması (Event Study) yöntemi uygulanmıştır. Vaka çalışmasında, olaydan (depremden) önceki 10 günün, olay gününün ve olayın ertesi gününden olaydan sonraki 10’uncu güne kadar hisse senedi fiyatları ve getirileri kullanılmıştır. Çalışmada söz konusu depremlerin hisse senedi piyasası üzerine etkisi olay incelemesi yöntemiyle analiz edilmiş, depremden sonraki 10 gün içerisinde oluşan anormal getiriler ve 10. gün sonundaki kümülatif anormal getiriler hesaplanmıştır. Deprem gününden sonraki birinci günde 20 şirkette, ikinci günde ise tüm şirketlerde negatif anormal kayıplar olduğu belirlenmiştir. Depremden sonra dördüncü günden itibaren şirketlerin anormal kazançlarının ortalama seviyelere döndüğü gözlenmiştir.

Anahtar Kelimeler

Olay İncelemesi, Anormal Getiriler, Kümülatif Anormal Getiriler

Destekleyen Kurum

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Proje Numarası

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Teşekkür

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ANALYTICAL INVESTIGATION OF THE EFFECTS OF 6 FEBRUARY 2023 EARTHQUAKE IN TURKEY ON SHARE RETURNS IN BIST-30 INDEX

Öz

In this study, the event or case study method was applied to determine whether there is a relationship between the earthquakes in Kahramanmaraş in Turkey on February 6 and the prices and returns of the stocks of the companies listed in BIST-30. In the case study, stock prices and returns were used from the 10 days before the event (earthquake), the day of the event and the day after the event to the 10th day after the event. In the study, the effect of the earthquakes in question on the stock market was analyzed by the case study method, and the abnormal returns within 10 days after the earthquake and the cumulative abnormal returns at the end of the 10th day were calculated. It was determined that there were negative abnormal losses in 20 companies on the first day after the earthquake, and in all companies on the second day. From the fourth day after the earthquake, it was observed that the abnormal earnings of the companies returned to the average levels.

Anahtar Kelimeler

Event Study, Abnormal Returns, Cumulative Abnormal Returns

Proje Numarası

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Kaynakça

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