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Exchange Restrictions

Order/Messaging Throughput

The table below shows the exchange-imposed transaction restrictions during normal trading:

Normal Trading Transaction Restrictions

Message Type

Messages per Second

New order messages

80 per second

Cancel/Replace messages

80 per second

Delete messages

160 per second

During heavy trading, the exchange imposes the transaction restrictions listed below:

High-Load Trading Transaction Restrictions

Message Type

Messages per Second

New order messages

40 per second

Cancel/Replace messages

40 per second

Delete messages

80 per second

Warning

The exchange disconnects any order session that exceeds the transaction restrictions listed above. To prevent exchange-triggered disconnects, TT strongly recommends that users configure throttling limits in TT User Setup.

Price Control

TFX utilizes a Price Control system which restricts submitted orders to a particular price range. The exchange deletes orders submitted outside of the pre-determined price range.

TFX calculates the price control range differently depending on the type of product traded. For a complete explanation of the TFX price control system, refer to the exchange website at http://www.tfx.co.jp/en/trading/trading1.shtml.

Submitting Orders

For TFX, all submitted orders must contain an account code. The exchange rejects any order submitted without an account code.

In addition, account codes G1, and G2 are reserved for giveup orders. Account code G3 is not used. The TFX Gateway rejects any order submitted with an invalid account code.

For more information, refer to Support for Account Codes.