[arrowhead4.0] Are the most prioritized orders those placed at 12:05 when time priority is applie...

There can be the cases where orders placed at the morning session remain on the order book at the afternoon session. For those cases, orders placed at 12:05 ... Show Details

[arrowhead4.0] Will any order-related messages for arrowhead be changed due to the introduction o...

In order to link order/execution with MBO market data, Order ID and Match ID will be added. Please refer to the System Interface Specification for arrowhead ... Show Details

[arrowhead4.0] Are there any modifications for messages delivered to Ordering Virtual Server?

The following 4 items are main changes. Please refer to the System Interface Specification for arrowhead for details.-Changes due to the introduction of Spec... Show Details

[arrowhead4.0] Regarding the morning session which the closing auction does not apply, will the b...

Yes. Show Details

[arrowhead4.0] Is it acceptable if orders are sent beyond the Sending Allowed Message Sequence Nu...

If a Virtual Server has sent messages beyond the Sending Allowed Message Sequence Number (SAMSN), arrowhead regards the exceeded messages as an Incorrect Mes... 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] Are there any conditions to use the STP function?

The STP function is applicable only to virtual servers (order/notice) used exclusively by a specific investor (including a set of investors which are reasona... Show Details

[arrowhead4.0] Will Market Administration Message be delivered at the start of Pre-Closing?

Market Administration Message will not be delivered at the start of Pre-Closing. (Will not add new Market Administration Message indicating the start of Pre-... Show Details

[arrowhead4.0] Is it available to obtain from arrowhead Virtual Servers the "Number of stocks (li...

It is available to obtain by Issue Information Requests of arrowhead Virtual Servers (Query). * For certain issues with '0115 (Domestic Securities Investm... Show Details

[arrowhead4.0] Can the value of indices change during pre-closing period?

No. The index value remains unchanged during pre-closing period and is delivered at regular intervals since no quote change that would cause the index value ... Show Details