For decades, the Indonesia Stock Exchange (IDX) has operated under a mutual ownership structure where brokerage firms that trade on the exchange also control its strategic direction. This model, once common globally, has become an anachronism that stifles growth and erodes trust in Jakarta's capital market. As MSCI prepares to reassess Indonesia's market classification, the pressure to reform has never been greater.
The core problem lies in the conflict of interest inherent in a self-regulatory organization (SRO) owned by its members. The IDX is expected to enforce market discipline impartially, yet those subject to regulation—the brokerage firms—effectively influence the regulator. This structural flaw has long been recognized: as early as 2002, international institutions recommended demutualization, warning that the non-profit model was inadequate for a market increasingly exposed to global financial shocks.
Reliance on member contributions has limited the exchange's ability to invest in advanced trading infrastructure, reducing liquidity and weakening price discovery. When disciplinary action is needed against firms involved in market manipulation or abusive trading, exchange executives face political and institutional pressures because their positions are tied to the very members they oversee. Demutualization is not merely an institutional modernization exercise; it is an urgent step to separate ownership rights from trading privileges and establish independent governance.
A New Law, New Risks
Momentum for change arrived with Law No. 4 of 2026, which amends Indonesia's Financial Sector Development and Strengthening Law (P2SK). The legislation fundamentally alters the IDX's ownership architecture by allowing individuals and legal entities—whether or not exchange members—to hold shares. This ends the long-standing ownership monopoly of securities firms and opens the door to a diversified shareholder base.
Transforming the IDX from a non-profit into a profit-oriented corporation is expected to improve managerial efficiency and capital-raising ability. In the future, it could even pave the way for a public listing of the exchange itself, following the path of leading exchanges in Singapore, Hong Kong, and elsewhere. Yet the most controversial aspect of the new law lies elsewhere: it permits the Indonesian government, through the Ministry of Finance, Bank Indonesia, and the sovereign investment vehicle Danantara, to become shareholders.
This state involvement raises fresh concerns. Critics argue that government ownership could politicize the exchange's operations, especially when enforcing rules against state-linked firms. The move also tests investor trust in President Prabowo Subianto's economic vision, as Danantara's role in the economy remains under scrutiny. Meanwhile, the IDX's governance challenges are compounded by broader economic pressures, including a weakening rupiah that has pushed manufacturers to the brink, as recent reports highlight.
The MSCI review adds urgency. If the index provider downgrades Indonesia's market status due to governance concerns, foreign capital could flee, exacerbating the country's already strained financial conditions. The IDX's broken trust is not just a domestic issue; it has implications for the entire region, as Indonesia is Southeast Asia's largest economy and a key destination for global investment.
For the IDX to regain credibility, demutualization must be implemented transparently, with clear safeguards against state interference. The clock is ticking, and Jakarta's policymakers must act decisively to modernize the exchange before MSCI makes its decision.
