What are Simultaneous Orders (executions) before opening price determination for arrowhead?

The principle of time priority is ignored such as orders placed before the opening price is determined during the morning and afternoon trading sessions. Tha... Show Details

Are there any documents (Specifications, Requirements, guidelines, etc.) that describe the precau...

There are descriptions on "System Interface Requirements for arrowhead" - 4.5. Notes on Test Issues.(Excerpt below)The main purpose of Test Issues is provide... Show Details

After FLEX Standard ST-Status Flag B0 Special Quote is disappeared, is there a case that "B0: Ita...

FLEX disseminates "B0: Itayose", if a Special Quote is removed after the Special Quote is newly shown and the Special Quote price has been updated more than ... Show Details

[arrowhead] What is the cause of error or invalidation by Reason Code 1040, 3007, 3008, 3010, 3011?

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

What is the condition which invokes Cancel on Disconnect (COD)?

[Trigger of COD]-The Exchange Trading System detects the loss of the TCP connection with a Virtual Server that has established an Operation Link.-The Exchang... Show Details

Can one Virtual Server group be set group function of arrowhead across the Exchanges? (TSE, NSE, ...

Group function of arrowhead does not allow group settings across the Exchanges. Show Details

What are the base price/Flag (Indicating the central price of the order book) in the FLEX issue B...

For direct newly listing, middle of the book price is disseminated.Also, in some cases where demerger or stock dividend are conducted, middle of the book pri... Show Details

If I place an order on the issue of the Trading Halt in ToSTNeT, will the order be an error?

Although closing price orders are accepted during Trading Halt of ToSTNeT, Single Stock Trading and Basket Trading result in acceptance errors. Show Details

[arrowhead] What is the cause of error or invalidation by Reason Code 1003?

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

In the FLEX Standard ST-Status Flag, is there a case that "B0: Itayose" is not set after a Specia...

After a Special Quote is shown, if the Special Quote is removed without updating Special Quote price, "Space" will be set instead of "B0: Itayose". Show Details