On 30 December 2025, TAI EXC amended Operating rules for securities firms handling margin purchases and short sales of securities, and issued explanatory note.
- In addition, TAI EXC amended the Contract for the handling by a securities firm of margin purchases and short selling in securities trading, and issued explanatory note.
- The amendments include introducing electronic notification methods such as SMS and mobile apps, and introducing emerging stocks into the scope of collateral.
- Specifies relevant rules regarding emerging stocks including formula to calculate the collateral maintenance ratio, calculation basis for emerging stock prices in formulas for margin financing shortfall and short selling margin shortfall.
- Requires securities firms to establish clear risk assessment standards and minimum collateral acceptance amounts as criteria for determining whether to accept collateral.
- The collateral value of emerging stock is calculated at 40% of its base price.
- Securities firms must notify clients to replace collateral at least five business days before emerging stock ceases trading.
- The amendments are effective from 30 March 2026.
