REGIME DETECTION IN THE INDIAN STOCK MARKET: AN HMM APPROACH WITH IMPLIED VOLATILITY. Global Journal of Innovative Research in Multidisciplinary Areas (3049-4168), [S. l.], v. 2, n. 2, 2026. Disponível em: https://gjirma.com/index.php/home/article/view/3. Acesso em: 21 jul. 2026.