Volatility Persistence, Dynamic Co-Movements, and Portfolio Optimization in Digital Asset Markets: Disentangling Cross-Market Contagion from Internal Hedging Strategies. JIFT [Internet]. 2026 Jun. 29 [cited 2026 Jul. 14];2(2):155-88. Available from: https://ojs.nexuspress.org/journal-jift/article/view/284