[arrowhead4.0] What are Simultaneous Orders (executions) before opening price determination for a...

If the execution is at the start of the morning and afternoon trading sessions, or when the first execution price is determined after the Trading Halt, the p... Show Details

[arrowhead4.0] What is Special Execution?

Even in case of not matching at prices inside executable price range, execution processing is conducted at upper/lower limit of executable price range in arr... Show Details

[arrowhead4.0] Which mechanism has priority, stop allocation or special execution?

Stop allocation has priority. Show Details

[arrowhead4.0] Is there any limitation to STP in terms of types of order and sessions?

The STP function is applicable only to the matching in Zaraba, continuous trading session. Please not that even during Zaraba, the STP function does not appl... Show Details

[arrowhead4.0] What is Mass Cancellation?

This is a function to cancel all eligible orders at once by a mass cancellation order. The conditions of use are as follows;Target user : Users who have Virt... Show Details

[arrowhead4.0] What are the differences between the data FLEX Std. disseminates after the closing...

There is a difference that "1. Afternoon session end" and "3. Issue realtime message (backup)" disseminate "latest board information", whereas "2. Issue real... Show Details

[arrowhead4.0] Is there any change of method for TCP retransmission?

There are following modifications.-Authentication for TCP retransmission will be conducted by checking only FLEX user code, not checking IP address and port ... Show Details

[arrowhead4.0] Are there any documents (Specifications, Requirements, guidelines, etc.) that desc...

There are descriptions on "System Interface Requirements for arrowhead" - 4.4. Notes on Test Issues.(Excerpt below)The main purpose of Test Issues is provide... Show Details

[arrowhead4.0] What is the cause of error or invalidation by Reason Code 1040, 3007, 3008, 3010, ...

Please refer to the attached file summarizing the cause of error. Show Details

[arrowhead4.0] What happens to orders that were not executed at the closing auction of the aftern...

Orders cannot be taken over on the next business day, as it is valid on the very day.In addition, arrowhead does not send invalidation notices if orders are ... Show Details