Bangkok 28 Apr-SET change new trading system Connect investment in markets around the world, starting May 8, 2023, adding a P sign, temporarily banning trading for 1 day for securities with abnormal trading. Trading orders can be placed in the system for up to 30 days.

Mr. Thiraphan Suppakit, Deputy Manager, Head of Information Technology Division The Stock Exchange of Thailand said that the Stock Exchange of Thailand A new purchase system will be introduced. to make the system better connected to the global market Investors have easier access to foreign markets. Efficient in managing orders faster able to support the trading volume that will increase in the future The new trading system has outstanding features, including:

1. There are international standard connection standards, both ITCH/OUCH Protocol and FIX Standard Protocol, which are used in capital markets and leading derivatives markets around the world. Increases the opportunity to be accessed by investors from foreign markets more easily.

2. With a new trading system structure that is flexible and international. It allows the Stock Exchange and Futures Exchange (TFEX) to add a wide range of commodities as traded in leading international markets. which can perform system operations faster

3. Increase the resolution of dissemination of Bid/Offer price information of securities in the SET and mai market from 5 price levels to 10 price levels so that investors can make better trading decisions. because he sees demand and supply See the right price and strategy for delivering orders. make it more transparent

4. Improved timestamp resolution or order recording of orders. and the time of matching trading in nanoseconds, comparable to the leading foreign markets.

5. Added more convenient functions for member companies such as Self-match Prevention to prevent matching of orders from the same client/group, and Pre-Trade Risk Management as an additional option for members’ risk management.

The new system will start trading on May 8th, both SET and TFEX. The SET will have a monitoring team to take care of order on that day.

Mrs. Patravasi Suwanasorn, Deputy Manager, Head of Operations Management Division SET Said that the new trading system has improved the SET’s key trading criteria:

1. Adjustment of the opening-closing price calculation. The calculation still follows the same principle. Is a system calculated by pairing trading methods at once (Auction) in which the opening-closing price May be outside the ceiling & floor (C&F), but not more than 1 price range (tick).

2. Adjust C&F of -F shares to have C&F : 60% of the reference price. In all trading methods, from the original set C&F +30% of the reference price. For large trading stocks –F

3. Cancel the trading of sub-units (Odd Lot) of DW

4. Adjust the type of trading order, such as adding a Good till Cancel (GTC) order that will stay in the trading system until it is cancelled. and Good till Date (GTD) where the order will remain in the trading system until the specified date or until it is cancelled. which is set for a maximum of 30 days

5. Adjust key command types Has added a sign (P: Pause) to suspend trading for 1 day for securities with abnormal trading from the original 2 signs, H (Halt), to prohibit trading securities for half the trading cycle of the day, which is morning. and afternoon, and SP (Suspension) that prohibits trading temporarily. in securities that do not meet the criteria and there are irregular trading According to the SET’s current 3-level trading regulation measures, which have trading regulation measures for members to proceed as follows: Level 1: Do not calculate trading limit and Cash Balance Level 2: Do not net settlement, do not calculate trading limit and Cash Balance and Level 3 : Suspension of trading for 1 day on the first business day, Prohibition of Net Settlement, Prohibition of calculating trading limits and Cash Balance, which the new trading system has adjusted the Bid/Offer display to 10 price levels.

For important trading criteria of TFEX that have been improved, including adjusting the calculation of the opening price. By using the same principles as SET, adjusting the type of trading order, such as adding a Session State Order, adjusting the Circuit Breaker for each product by halting trading for 2 minutes in accordance with Global Practice, which will help investors adjust their status in a timely manner. more And apply the same guidelines for Non Equity Derivatives products and adjust the minimum trading price range of Block Trade Sector Futures products to 4 decimal places (0.0001 point).-Thai News Agency

Source: Thai News Agency