How the Return of Short Selling Is Set to Transform Indonesia’s Bourse

JAKARTA, Investortrust.id — The Indonesia Stock Exchange (BEI) is officially reintroducing financing for short-selling transactions on Tuesday, Sept. 15, 2026, unlocking a trading mechanism that has faced multiple regulatory delays over the past two years.

The exchange operator confirmed the gradual reactivation in a formal announcement released on Monday, Sept. 14, 2026, following directives issued by the Financial Services Authority (OJK).

The revival of short selling marks a critical milestone in maturing Southeast Asia's largest equity market. By enabling market participants to borrow shares and bet against declining stock prices, regulators are providing institutional investors with essential hedging instruments to manage portfolio risks during bearish cycles. The move is expected to bolster domestic liquidity, enhance price discovery, and align local exchange infrastructure with global bourse standards.

Short selling is an investment strategy where a trader aims to profit from a company’s falling share price rather than its growth. Instead of buying a stock outright, the investor borrows shares through an approved broker and sells them immediately at the current market price. If the stock drops as expected, the trader buys the shares back at the lower price to return them to the lender, keeping the difference as profit. For instance, if an investor borrows and sells a stock at Rp 10,000 and the price later slides to Rp 9,000, they repurchase the share to close the loan and pocket a Rp 1,000 gain per share before borrowing fees.

Phased Rollout and Regulatory Guardrails

Regulators are implementing the facility incrementally to ensure domestic clearing infrastructure remains sound, systemic risks are mitigated, and surveillance tools operate effectively.

The phased rollout follows OJK Letter No. S-113/D.04/2026, dated Sept. 9, 2026, which established comprehensive policies governing auto-rejection limits, trading halt protocols, and short-selling operations.

Under Exchange Rule No. II-H on margin and short-selling transactions, the bourse will publish its first comprehensive list of eligible short-sale securities on Sept. 28, 2026. The roster will become effective for active market trading starting in October 2026.

Clearing Multiple Postponements

The resumption puts an end to protracted administrative delays that sidelined the initiative throughout 2025 and early 2026.

Regulators initially targeted a launch in March 2025, but volatile global market conditions sparked by international trade policies prompted a postponement to September 2025. OJK subsequently issued follow-up deferrals in September 2025 and March 2026 to evaluate broker-dealer readiness and shield domestic shares from broader emerging-market headwinds.

Exchange leadership noted that earlier delays ensured brokerages had sufficient runway to build specialized risk-management architecture and meet prudential capital requirements.

Stricter Prerequisites and Execution Rules

To prevent speculative excesses, regulators have instituted stringent entry barriers for prospective short sellers under OJK Regulation No. 6/2024 (POJK 6/2024).

Investors must open dedicated short-selling accounts with approved brokerage members and maintain an active account history with a minimum initial balance of Rp 50 million ($3,145) for at least six months.

The exchange has also enacted an "at-tick" execution requirement, barring investors from placing short orders below the last traded price. The rule ensures traders cannot aggressively drive prices downward, providing maximum downside price stability while preserving profit opportunities during cyclical corrections.