Subscribe for security status with Security Def Request

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Imported from previous forum

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I have a question about Security Definition/Status messages.

Client wants to request all traded securities and then get unpdates on status of these securities.
I suppose that Security Definition and Security Status can be used to send to Client security parameters/status correspondingly.

However, what is correct request from Client?

In FIX 4.4 specification Security Definition Request message contains optional tag SubscriptionRequestType(263). If I understand description correctly, this tag can be used to subscribe for security status.

I.e. is the following sequence of events correct?

  • Client send Security Definition Request with SubscriptionRequestType (263) = ‘1’ (Snapshot + Subscribe).
  • Client receives Security Definition and Security Status messages in response.
  • Then Client receives new Security Status messages as soon as status of security is changed.

Thank you in advance.