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»Forums Index »Archive (2017 and earlier) »Data and Content Support »Live tick data is different from historical tick data (live reporting more ticks)

Author	Topic: Live tick data is different from historical tick data (live reporting more ticks) (2 messages, Page 1 of 1)
bludev -Interested User- Posts: 16 Joined: Nov 14, 2012	Posted: Sep 19, 2017 01:04 AM Msg. 1 of 2 We found that some live tick data are different from historical tick data. Live reporting more ticks than historical. These differences occur quite often throughout the day (thousands of ticks different). Both live and historical use the same IQFeed on the same machine. Live Q,@ESZ17,09/18/2017,08:18:09.681,2501.75,1,298390 Q,@ESZ17,09/18/2017,08:18:10.080,2502,1,298393 Q,@ESZ17,09/18/2017,08:18:10.080,2502,1,298393 Q,@ESZ17,09/18/2017,08:18:10.080,2502,1,298393 Q,@ESZ17,09/18/2017,08:18:21.772,2502,1,298413 Q,@ESZ17,09/18/2017,08:18:27.135,2502,1,298440 Q,@ESZ17,09/18/2017,08:18:27.135,2502,1,298440 Q,@ESZ17,09/18/2017,08:18:33.750,2502,2,298461 ... Q,@ESZ17,09/18/2017,10:40:49.321,2504,6,777536 Q,@ESZ17,09/18/2017,10:40:52.318,2504,7,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,5,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,1,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,1,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,1,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,3,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,3,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,3,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,3,777627 Q,@ESZ17,09/18/2017,10:40:55.292,2504.25,1,777748 Q,@ESZ17,09/18/2017,10:40:55.292,2504.25,1,777748 Q,@ESZ17,09/18/2017,10:40:56.993,2504,2,777772 Historical Q,@ESZ17,09/18/2017,08:18:09.681,2501.75,1,298390 Q,@ESZ17,09/18/2017,08:18:10.080,2502,1,298393 Q,@ESZ17,09/18/2017,08:18:21.772,2502,1,298413 Q,@ESZ17,09/18/2017,08:18:27.135,2502,1,298440 Q,@ESZ17,09/18/2017,08:18:33.750,2502,2,298461 ... Q,@ESZ17,09/18/2017,10:40:49.321,2504,2,777536 Q,@ESZ17,09/18/2017,10:40:49.321,2504,6,777536 Q,@ESZ17,09/18/2017,10:40:52.318,2504,7,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,5,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,1,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,1,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,1,777627 Q,@ESZ17,09/18/2017,10:40:52.318,2504,3,777627 Q,@ESZ17,09/18/2017,10:40:55.292,2504.25,1,777748 Q,@ESZ17,09/18/2017,10:40:56.993,2504,2,777772 Which one is correct? Is live reporting more ticks or is the historical missing some ticks? Thanks
DTN_Tim Walter -DTN Guru- Posts: 1238 Joined: Apr 25, 2006	Posted: Sep 19, 2017 06:52 AM Msg. 2 of 2 Good morning, It looks like something is duplicating messages in your live feed. Do you have a developer account with us? If so, I would suggest reaching out to us at the email given on this page, (you must be logged into your developer account for it to work) http://www.iqfeed.net/dev/support.cfm, and we can dive in to what options exist within our API. Tim