Jakarta. Shares of several Indonesian companies that have been widely viewed as potential candidates for inclusion in the Morgan Stanley Capital International (MSCI) indices plunged on Wednesday, after MSCI announced it would temporarily freeze positive treatment for Indonesian equities, citing investability concerns that include free-float constraints.

The sell-off hit a number of stocks previously flagged by the market as MSCI hopefuls ahead of the February 2026 index review, including Pantai Indah Kapuk Dua (PANI), Alamtri Minerals Indonesia (ADMR), Bumi Resources (BUMI), and Petrosea (PTRO).

PANI recorded the steepest decline, tumbling 14.89% to Rp 9,575. The sell-off reflected renewed concerns over whether the stock can meet MSCI’s free-float and investability criteria, despite its large market capitalization, requirements that are central to inclusion in global benchmark indices.

BUMI slid 14.53% to Rp 294, while PTRO dropped 14.87% to Rp 7,300. ADMR also came under pressure, falling 6.76% to Rp 2,070, as investors reassessed the likelihood of near-term foreign inflows following the MSCI announcement.

The four stocks have been among the names most closely watched ahead of the February 2026 MSCI rebalancing. However, MSCI’s decision has shifted market attention back to basic eligibility requirements, particularly free float, trading liquidity, and access for foreign investors.

According to Mirae Asset Sekuritas, MSCI indices are closely followed by global institutional investors, and inclusion in the benchmark is often accompanied by inflows from both passive and active funds. As a result, MSCI-related decisions tend to have an outsized impact on stock prices, liquidity, and foreign ownership trends in emerging markets such as Indonesia.

MSCI effects are often sector-wide rather than limited to individual stocks. When one company gains index inclusion, foreign investors frequently increase exposure to the broader sector, amplifying the market impact beyond a single name.