MUTUM, Kelvin; DAS, Ashim Kr.; SINGH, N. B.; SARITA SINGHA, U. Testing the Efficiency of Indian Index Options Market by Employing the Box - Spread Strategy : Empirical Evidence from S&P CNX Nifty Index. Indian Journal of Finance, [S. l.], v. 12, n. 10, p. 21–32, 2018. DOI: 10.17010/ijf/2018/v12i10/132492. Disponível em: https://www.indianjournalofcapitalmarkets.com/index.php/IJF/article/view/132492. Acesso em: 6 aug. 2025.