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Journals / Nicel Bilimler Dergisi / 2026 / Cilt: 8 Sayı: 1

The Role of Commodities and Crypto Assets In Systematic Risk Reduction During The COVID-19 Process: An Application On BIST50 with Fuzzy Logic

COVID-19 Sürecinde Sistematik Riskin Azaltılmasında Emtia ve Kripto Varlıkların Rolü: Bulanık Mantıkla BIST50 Üzerine Bir Uygulama

Nisa Alparslan0000-0003-2281-6329
Saffet Akdağ(Tarsus Üniversitesi)0000-0001-9576-6786
Pages
1–17
Publication Date
2026-06-29
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this context, investors' diversification of their portfolios by considering the risk-return balance is emphasized as an effective strategy to reduce systematic risk

📌 3 Key Takeaways

🎯
Objective & Hypothesis:With the impact of the COVID-19 pandemic on the global economy, financial markets have entered a period of uncertainty and volatility, causing investors to reassess their investment preferences.
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Key Findings & Data:Using weekly data from 11 March 2020 to 31 May 2022, this study covers equities in the BIST50 index, 10 commodities and 10 crypto assets with the highest trading volume during the analysis period.
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Conclusion & Impact:In this context, investors' diversification of their portfolios by considering the risk-return balance is emphasized as an effective strategy to reduce systematic risk
🔬Design:Araştırma Makalesi
📍Scope:2020 Verileri
⚙️Variables:Bulanık Mantık · Portföy Optimizasyonu · Sistematik Risk

Abstract

With the impact of the COVID-19 pandemic on the global economy, financial markets have entered a period of uncertainty and volatility, causing investors to reassess their investment preferences. In addition to traditional investment instruments such as stocks and bonds, safe-haven assets such as gold and crypto assets have become alternatives for investors. Using weekly data from 11 March 2020 to 31 May 2022, this study covers equities in the BIST50 index, 10 commodities and 10 crypto assets with the highest trading volume during the analysis period. The research examines the role of commodities and crypto assets in mitigating systematic risk during COVID-19. According to the findings, the portfolio containing commodities and crypto assets has the highest return, while the lowest risk is observed in the portfolio consisting of BIST50 equities. The Sharpe index and coefficient of variation results reveal that the optimal portfolio of equities outperforms. Although the inclusion of commodities and crypto assets in the portfolio contributed to reduce systematic risk, the high volatility of these assets led to relatively lower portfolio performance. In this context, investors' diversification of their portfolios by considering the risk-return balance is emphasized as an effective strategy to reduce systematic risk

Özet

COVID-19 pandemisinin küresel ekonomi üzerindeki etkisiyle beraber finansal piyasalar, belirsizlik ve volatilitenin hâkim olduğu bir sürece girmiş, bu durum yatırımcıların yatırım tercihlerini yeniden değerlendirmesine neden olmuştur. Geleneksel yatırım araçları olan pay senetleri ve tahvillerin yanı sıra altın gibi güvenli liman varlıkları ve kripto varlıklar, yatırımcılar için alternatifler arasında yer almıştır. Bu çalışma, BIST50 endeksinde yer alan pay senetleri ve 10 emtia ile analiz dönemindeki en yüksek işlem hacmine sahip 10 kripto varlığın 11 Mart 2020 ile 31 Mayıs 2022 tarihleri arasındaki haftalık verilerini kapsamaktadır. Çalışma COVID-19 sürecinde portföyün sistematik riskinin azaltılmasında emtiaların ve kripto varlıkların oynadığı rolü incelemektedir. Emtia ve kripto varlıkların portföye dâhil edilmesi, sistematik riski azaltma yönünde katkı sunsa da bu varlıkların yüksek volatilitesi, portföy performansında görece daha düşük sonuçlar elde edilmesine neden olmuştur. Elde edilen bulgulara göre en yüksek getiriyi sağlayan portföy, emtia ve kripto varlıkları içeren portföy olurken en düşük risk ise BIST50 pay senetlerinden oluşan portföyde gözlemlenmiştir. Bu bağlamda yatırımcıların risk-getiri dengesini gözeterek portföylerini çeşitlendirmeleri, sistematik riskin azaltılmasında etkili bir strateji olarak vurgulanmaktadır.

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Cite This Article

Alparslan, N., Akdağ, S. (2026). The Role of Commodities and Crypto Assets In Systematic Risk Reduction During The COVID-19 Process: An Application On BIST50 with Fuzzy Logic. Nicel Bilimler Dergisi, Cilt: 8 Sayı: 1, 1–17. https://doi.org/10.51541/nicel.1572555

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