CORRELATIONS AND VOLATILITY BETWEEN DEFI MARKETS AND SME STOCK MARKETS

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Nişantaşı Üniversitesi Sosyal Bilimler Dergisi
Cilt: 13 Sayı: 2
CORRELATIONS AND VOLATILITY BETWEEN DEFI MARKETS AND SME STOCK MARKETS

CORRELATIONS AND VOLATILITY BETWEEN DEFI MARKETS AND SME STOCK MARKETS

Authors : Nehir Balcı

Pages : 858-875

Doi:10.52122/nisantasisbd.1753156

View : 36 | Download : 87

Publication Date : 2025-12-31

Article Type : Research Paper

Abstract :Although many academic studies have examined volatility spillovers and dynamic correlations between stock markets, they have largely overlooked the perspective of Small and Medium-Sized Enterprise (SME) markets. On this basis, this study explores the interconnectedness and volatility correlation between Decentralized Finance (DeFi) markets and SME markets. To understand the correlation between these markets, we empirically analyse six European SME market indices—the FTSE AIM All-Share Index (AIM), BIST SME Industrial Index (BISTSME), Euronext Growth All-Share Index (EURONEXT), First North All-Share Index (FIRSTNORTH), IBEX Medium Cap Index (IBEXC), and Scale All-Share Performance Index (SCALE)—alongside three cryptocurrencies: Aave (AAVE), Ethereum (ETH), and Uniswap (UNI); two stablecoins: Dai (DAI) and USD Coin (USDC); and one synthetic asset: Synthetix (SNX). The study employed BEKK-GARCH and DCC-GARCH to analyse the existence of spillover effects and correlations from October 5, 2020, to August 18, 2024. The findings indicate that AAVE, ETH, and UNI, in particular, transmit significant volatility to the EURONEXT and FIRSTNORTH markets. However, bidirectional volatility spillover was detected between EURONEXT and AAVE, ETH, UNI, USDC, and SNX, and FIRSTNORTH and AAVE, ETH, UNI, and SNX. This suggests volatility interdependence between these markets and the existence of potential risk contagion channels.
Keywords : KOBI piyasaları, DeFi piyasası, Volatilite yayılımı, Hedging, BEKK GARCH, DCC GARCH

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