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»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »Pre-market and after market trade question
Author Topic: Pre-market and after market trade question (2 messages, Page 1 of 1)

gwalschl
-Interested User-
Posts: 46
Joined: Oct 25, 2006
Posted: Sep 12, 2007 10:25 AM          Msg. 1 of 2
From a previous reply to a posting I made a few months back, I understand that the information in a summary message is not stored on the IQFeed servers and that the summary messages are just "snapshots" of what's on the IQFeed servers. Therefore, any extended trading information is just "pass through" when trade updates come along during pre-market or after hours because it's not stored on the servers.

Given this, if I want to cycle through, say 2000 symbols, after the post-market trading ends at 6:30pm EST, watching and then unwatching each of these symbols to generate a summary message for each one, will the "last" field after 6:30pm EST reflect the most recent price for after hours trading (if any after hours trading occurred)?

For pre-market conditions the next day, I don't think I can "cycle" through all 2000 symbols to generate summary messages as the only indication of pre-market trades would be through a trade update. Is that correct?

DTN_Jay_Froscheiser
-VP, Product Operations-
Posts: 1746
Joined: May 3, 2004

DTN IQFeed/DTN.IQ/DTN NxCore

Posted: Sep 12, 2007 04:23 PM          Msg. 2 of 2
see http://forums.dtn.com/index.cfm?page=topic&topicID=1796
Jay Froscheiser
DTN - Trading Markets
 

 

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