Covid-19 Döneminde Borsa İstanbul’da Sürü Davranışı Bulguları

Year 2024, Volume: 24 Issue: 1, 335 - 344, 25.03.2024

Osman Emre Arlı , Berkan Ataş

https://doi.org/10.11616/asbi.1395936

Abstract

Yatırımcıların duygu ve davranışlarının etkilendiği dönemlerde, diğer yatırımcıları taklit etmesi, sürü davranışında bulunmalarına neden olmaktadır. Bu çalışmada Covid-19 dönemi ve pandemi öncesi dönem karşılaştırmalı olarak ele alınmıştır. Yatay kesit mutlak sapma (CSAD) yönteminin uygulandığı çalışmada, Borsa İstanbul’da işlem gören bankacılık, gıda, ulaştırma, turizm ve teknoloji sektörleri ile BIST 30 ve BIST 100 endeksleri incelenmiştir. Elde edilen bulgular çerçevesinde pandemi öncesi dönemde sürü davranışına rastlanmazken ve pandemi döneminde BIST 30, BIST 100 endeksleri ile banka, gıda, ulaştırma ve teknoloji sektörlerinde sürü davranışı görülmüştür.

Keywords

Davranışsal Finans, Sürü Davranışı, CSAD, Covid-19

Findings of Herd Behavior in Borsa Istanbul During Covid-19

Abstract

In cases where investors' emotional and behavioral responses are influenced, mimicking fellow investors leads to the manifestation of herd behavior. This study is dedicated to scrutinizing and contrasting instances of herd behavior within the Borsa Istanbul during the Covid-19 period against those in the pre-pandemic phase. The analysis specifically encompasses the banking, food, transportation, tourism, and technology sectors traded on the Borsa Istanbul, as well as the BIST 30 and BIST 100 indices. The CSAD (cross-section absolute deviation) methodology is employed as the analytical framework. The findings delineate a lack of herd behavior during the pre-pandemic period. However, contrasting this, the pandemic period witnesses the emergence of herd behavior, evident within the BIST 30, BIST 100 indices, and the banking, food, and technology sectors.

Keywords

Behavioral Finance, Herd Behavior, CSAD, Covid-19

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