Home

• Domestic equity index futures, single stock futures, and domestic ETF futures are 10%.
• Foreign ETF futures are 15%.
• Domestic equity index options are 10% of the latest closing price of the underlying index. Maximum change in Single stock options and domestic ETF options of premium (in points) shall be maximum change of value of the underlying asset divided by premium multiplier. Foreign ETF options are 15% of previous day’s settlement price.
• In consideration of the relatively large price range, three-phase daily price limit are applicable for foreign equity index products, FX products, and commodity products. For more information, please go to Home > Investor Protection > FAQ > Questions Frequently Asked by Traders > Trading

• Kill Switch Mechanism is applicable to Futures Proprietary Traders and Brokers. For the Futures Brokers, only the traders with dedicated session can be applicable. In case of system malfunction, if the Futures Proprietary Traders, Institutional Traders or Retail Traders cannot delete their orders in time, it may result in huge losses, or even affect the normal operation of the FCMs and futures market. To avoid the chain reaction caused by system malfunction, TAIFEX offered Kill Switch Mechanism.
• Instructions for use:
  • Futures ProprietaryTraders:
    • After the application approved by TAIFEX, Futures Proprietary Traders can trigger Kill Switch (or resume trading) by sending system messages or activating through the internet interface provided by TAIFEX when meeting the applicable time.
    • After receiving the orders of Kill Switch, TAIFEX will immediately stop receiving new orders from the designated Session or 7-digit account number of the Futures Proprietary Traders (Including new orders/quotations and modifying orders). Then TAIFEX will delete all unfilled orders/quotations from the designated Session or 7-digit account number of the Futures Proprietary Traders. (Including the orders of Continuous Matching of Block Trade)
  • Institutional Traders or Retail Traders (Only applicable to the traders that trade through dedicated sessions):
    • After the application approved by Futures Brokers, Institutional Traders or Retail Traders can trigger Kill Switch (or resume trading) via Futures Brokers when meeting the applicable time.
    • After receiving the orders of Kill Switch, TAIFEX will immediately stop receiving new orders from the designated Session of Institutional Traders or Retail Traders (Including new orders or modifying orders). Then TAIFEX will delete all unfilled orders from the designated Session of Institutional Traders or Retail Traders. (Including the orders of Continuous Matching of Block Trade)
• For more information, please go to Law Source Retrieving System of Stock Exchange and Futures Trading > Taiwan Futures Exchange Corporation Operation Directions for the Use of Kill Switch by Futures Commission Merchants

When FCMs experience a disconnection, they are unable to modify orders already sent to the exchange until they reconnect. This could lead to unintended order matching and potential losses during periods of market fluctuations. The COD mechanism offers a solution by allowing the proprietary trading business of FCMs to choose the appropriate trading session based on their specific needs. If the TAIFEX detects an accidental disconnection of the proprietary trading business and certain conditions are met, the COD will be activated. It acts promptly to cancel all outstanding orders under the disconnected session, thereby reducing the risks associated with connection disruptions and minimizing potential losses.

In order to strengthen the backup mechanism for placing orders for FCMs, the TAIFEX sets up a cloud-based backup trading bidding terminal to reduce the trading interruption time for futures that FCMs cannot place orders due to force majeure factors, and provide FCMs with more various, convenient and timely service. For related application forms, please go to Home > Member Information > Forms of Trading and Clearing Application > Forms of Managing FCMs
IP and User ID of the TAIFEX Cloud-based Backup Futures Auction Terminals Application Form (shall be submitted beforehand)
Use of the TAIFEX''s Reserve Market Terminals Application Form (shall be submitted during the trading session on the day)

When an FCM have a failure in its system due to a force majeure accident, it may use the supporting backup accounts opened at its head office, branch or another FCMs, and the supported FCM should fax “Futures Trading Backup Account Report Form” before using the backup accounts for trading.
If the supported FCM stops using the supporting backup accounts, the clearing member supporting the FCM should fill in the "Supporting Backup Account Position Transfer Report Form" to TAIFEX. For more information, please go to Law Source Retrieving System of Stock Exchange and Futures Trading >Taiwan Futures Exchange Operating Procedures for Use of Backup Futures Trading Accounts
Futures Trading Backup Account Report Form
Supporting Backup Account Position Transfer Report Form

Taifex launched TMPDC Session to transfer order reply data (drop copies) of TMP, FIX4.4 and FIX4.2 Session. Brokers can get drop copies from TMPDC Session during Taifex Services time. Each TMPDC Session can map to a dedicated order Session.
TCP/IP TMP Messaging Specifications

When the TAIFEX trading system or trading information transmission system experiences a malfunction or telecommunications disruption such that a futures contract is affected, the TAIFEX may announce a halt of trading in that contract according to related rules. After eliminating the malfunction, the TAIFEX may immediately announce resumption of trading for that futures contract according to related rules. For more information, please go to Law Source Retrieving System of Stock Exchange and Futures Trading > Taiwan Futures Exchange Corporation Measures for Handling Malfunctions and Telecommunications Disruptions in Trading Systems or Trading Information Transmission Systems

The futures market launched relevant measures to avoid the computer malfunctions of the securities market affecting the operation of the futures market and in response to the implementation of the procedures for verification and disclosure of material information of the securities market. For more information, please go to
Law Source Retrieving System of Stock Exchange and Futures Trading > Taiwan Futures Exchange Corporation Handling Measures in Response to Halts of Trading in Securities Markets

The rule for market closing or trading during natural disasters, please go to Law Source Retrieving System of Stock Exchange and Futures Trading > Taiwan Futures Exchange Corporation Provisions for Market Closing or Trading During Natural Disasters and on Election Days

If there are force majeure events (such as typhoon) on the last trading day or the final settlement day, TAIFEX may adjust the last trading day or the final settlement day. For more information, please go to
TOPIX Futures
DJIA Futures, S&P 500 Futures and Nasdaq-100 Futures
FTSE^® 100 Index Futures
Brent Crude Oil Futures