Do activities of foreign investors affect main stock exchange indices? Evidence from Turkey before and in time of Covid-19 pandemic

Mustafa Tevfik Kartal; Mustafa Tevfik Kartal

doi:10.3934/NAR.2020023

National Accounting Review

2020, Volume 2, Issue 4: 384-401. doi: 10.3934/NAR.2020023

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Research article

Do activities of foreign investors affect main stock exchange indices? Evidence from Turkey before and in time of Covid-19 pandemic

Mustafa Tevfik Kartal ^,

Borsa İstanbul Financial Reporting and Subsidiaries Directorate, İstanbul, Turkey

Received: 19 October 2020 Accepted: 20 December 2020 Published: 22 December 2020
JEL Codes: C32, E44, G12, G15

The net selling amount and foreign investors' retention share have been criticized due to the effects on stock exchange indices. The study focuses on the development of the main index in Turkey (XU100 index) by examining two sub-parts (i.e. before and in Covid-19 pandemic). Daily data between 01.02.2020 and 06.26.2020 are analyzed by applying the Engle-Granger cointegration test, Toda-Yamamoto causality test, and multivariate adaptive regression splines (MARS). The findings reveal that (ⅰ) net selling amount of foreign investors has an effect on the index in Covid-19 pandemic times; (ⅱ) retention share of foreign investors is influential on the index for both period; (ⅲ) there is cointegration between the index and independent variables but this relationship is not at causality level.
- Covid-19 pandemic,
- foreign investors,
- main stock exchange index,
- net selling amount,
- retention share,
- Engle-Granger cointegration test,
- Toda-Yamamoto causality test,
- MARS
Citation: Mustafa Tevfik Kartal. 2020: Do activities of foreign investors affect main stock exchange indices? Evidence from Turkey before and in time of Covid-19 pandemic, National Accounting Review, 2(4): 384-401. doi: 10.3934/NAR.2020023

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Abstract

The net selling amount and foreign investors' retention share have been criticized due to the effects on stock exchange indices. The study focuses on the development of the main index in Turkey (XU100 index) by examining two sub-parts (i.e. before and in Covid-19 pandemic). Daily data between 01.02.2020 and 06.26.2020 are analyzed by applying the Engle-Granger cointegration test, Toda-Yamamoto causality test, and multivariate adaptive regression splines (MARS). The findings reveal that (ⅰ) net selling amount of foreign investors has an effect on the index in Covid-19 pandemic times; (ⅱ) retention share of foreign investors is influential on the index for both period; (ⅲ) there is cointegration between the index and independent variables but this relationship is not at causality level.

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