THEMATIC ANALYSIS OF SHARIA STOCK PORTFOLIO DIVERSIFICATION AND FINANCIAL RATIOS: A CONCEPTUAL STUDY BASED ON THE INDONESIAN SHARIA STOCK INDEX (ISSI). BEMJ: Business, Entrepreneurship, and Management Journal, [S. l.], v. 4, n. 2, p. 112–126, 2026. DOI: 10.36563/bemj.v4i2.1953. Disponível em: https://journal.unita.ac.id/index.php/bemj/article/view/1953. Acesso em: 18 jan. 2026.