BIST 100, Döviz Kuru, Altın ve Petrol Fiyatları Arasındaki Etkileşimlerin Zaman ve Frekans Boyutunda Analizi
Analysis of Interactions Between BIST 100, Exchange Rates, Gold, and Oil Prices in Time and Frequency Dimensions

Summary/Abstract: This study aims to examine the short-, medium-, and long-term interactions between Türkiye BIST 100 index, exchange rates, gold, and oil prices within the time and frequency domains. The daily opening data between 01.01.2013 and 31.10.2024 have been analyzed using the wavelet transform technique. The results of the study indicated a strong relationship between gold prices and the exchange rate in the short, medium, and long term. The interaction between the exchange rate, oil prices, and the BIST 100 index was weak in the short term, increased in the medium term, and became strong in the long term. Similarly, the relationships between gold and the BIST 100 index, as well as oil prices, were weak in the short term, but significantly strengthened in the medium and long terms. The correlation between the exchange rate and oil prices was found to be low in the short term, increasing in the medium term, and strong in the long term. The study shows how the dynamics between the exchange rate, gold prices, oil prices, and the BIST 100 index in Turkey's financial market have changed over time and how they were influenced by economic crises and global events (COVID-19). This information is expected to provide valuable insights for investors in determining risk management and portfolio diversification strategies.

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