Structural Transformation of the Indonesia Stock Exchange: a Change In Free Float Regulatory Regime

Author: aluna Analytics | Date: 9 February 2026 | Category: Market Intelligence


The Indonesian capital market is currently undergoing its most significant structural transformation in two decades, precipitated by a convergence of domestic regulatory ambition and intense pressure from global index providers. As of early 2026, the Financial Services Authority (Otoritas Jasa Keuangan or OJK) and the Indonesia Stock Exchange (IDX) have initiated a mandatory increase in the minimum free float requirement for listed companies from the historical 7.5% to a new baseline of 15%. This regulatory pivot serves as a direct, existential response to a crisis of confidence triggered by Morgan Stanley Capital International (MSCI), which froze the rebalancing of Indonesian securities in February 2026 due to severe concerns regarding market investability, “coordinated trading” behaviors, and opaque beneficial ownership structures.

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