Indonesia's recent regulatory reforms aimed at increasing the minimum free float of shares and enhancing ownership transparency in listed companies have raised concerns among analysts about potential delistings and market disruption. The changes come after index compiler MSCI warned in January that Indonesia risked being downgraded from an emerging to a frontier market due to insufficient freely tradable shares and opaque shareholding structures.

The reforms call for a doubling of the minimum free float threshold to 15 percent of total shares from the current 7.5 percent. Although the Indonesia Stock Exchange (IDX) and the Financial Services Authority (OJK) have allowed companies up to three years to comply depending on their size, analysts say many firms may struggle to meet the requirement. As of March, only 556 out of 956 listed companies had free floats above the new threshold.

Among companies under scrutiny is Lotte Chemical Titan, part of South Korea’s Lotte group, which currently holds a 7.5 percent free float and is reportedly reviewing its listing status. Solusi Tunas Pratama, a telecom infrastructure firm linked to the Djarum conglomerate, was suspended last year due to a free float below 1 percent and has announced plans to go private.

The OJK also tightened disclosure rules, reducing the reporting threshold for shareholder stakes from 5 percent to 1 percent to promote greater transparency. While the regulator expects more than $11.4 billion worth of shares to enter the public float due to these changes, analysts warn the Indonesian market may lack the depth to absorb this increased supply. This mismatch could exert downward pressure on stock prices.

Industry experts caution that some companies might use nominee arrangements—where shares are held by entities linked to controlling shareholders—to feign compliance with free float requirements. Although such structures are illegal if used to conceal beneficial ownership, they remain common and can create an appearance of greater public ownership than actually exists.

To help absorb the additional shares, regulators have raised the equity investment limit for insurance companies and pension funds from 8 percent to 20 percent of their assets under management. However, some observers expressed concern that increasing exposure to the volatile stock market could heighten risks for these institutional investors.

Retail traders constitute a significant portion of market activity, often accounting for more than half of daily transactions, and their typically short-term focus contributes to notable price volatility. Indonesia’s sovereign wealth fund, Danantara, has pledged to bolster its equity investments, with plans to allocate at least $7 billion to public bonds and equities next year, primarily within the domestic market.

Despite these measures, analysts emphasize the importance of rigorous enforcement and monitoring to maintain market stability and credibility. The Bright Institute’s senior economist Yanuar Rizky warned that without strict oversight, noncompliance and manipulation could undermine the reforms' objectives. MSCI recently highlighted concerns over declining information flow and coordinated trading behaviors in Indonesia, which could hamper accurate price formation and investor confidence.

As investors await an MSCI decision expected to reaffirm Indonesia’s emerging market status, the country’s authorities face the challenge of balancing regulatory reforms with market resilience amid evolving structural demands.