DTN IQFeed, DTN.IQ, DTN ProphetX Support Forums

Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)

"I was on the phone with a friend who uses CQG and right after the Fed announcement, CQG was as much as 30 seconds behind DTN.IQ. Some quotes were off by as much as 15-18 cents. Your feed never missed a beat." - Comment from Roger

"Version 4.0.0.2 has been working well for me and I appreciate that it is now a much tighter client to work with. I feel I can go to press with my own application and rely on a stable platform" - Comment from David in IA.

"You have an excellent feed. Very few spikes for Spot Forex." - Comment from Public Forum Post

"You are either overstaffed or people just don't have problems with your feed because customer support always answers the phone quickly." - Comment from Jay via Email

"I will tell others who want to go into trading that DTN ProphetX is an invaluable tool, I don't think anyone can trade without it..." - Comment from Luther

"Everything is working great ! Very impressive client. The news refreshes better and is more pertinent than the ******* feed I paid $ 100/month for. I Also like the charts a lot." - Comment from Leon

"I just wanted to say how happy I am with your service. I was able to download the API docs last week and I was able to replicate Interactive Brokers historical bar queries and realtime bar queries over the weekend. That was about one of the fastest integrations that I've ever done and it works perfectly!!!!" - Comment from Jason via Email

"I am keeping IQFeed, much better reliabilty than *******. I may refer a few other people in the office to switch as well." - Comment from Don

"Just a quick one to say I'm very impressed so far :) The documentation for developers is excellent and I've quickly managed to get an app written to do historical downloads. The system is very robust and pretty quick considering the extent of data that's available. The support guys have been very helpful too, in combination with the forums it's been plain sailing so far!" - Comment from Adam

"And by the way, have to say this. I love the IQFeed software. It's rock solid and it has a really nice API." - Comment from Thomas via RT Chat

Home

Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather

DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter

»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