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"My broker in Davenport suggested I give you a try as he uses your service and says its the best." - Comment from Bill via RT Chat
"For anyone considering using DTN.IQ for a data feed, my experience with the quality of data and the tech support has been very positive." - Comment from Public Forum
"I'm satisfied with IQFeed. It's the most reliable and fastest quote feed I have ever used. Although I'm a resident in China, it's still very fast!" - Comment from Xiaofei
"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
"There is no doubt that IQFeed is the best data provider. I am very satisfied with your services. And IQFeed is the only one that I would recommend to my friends. Now, most of them are using your product in China." - Comment from Zhezhe
"I used to have *******, but they are way more money for the same thing. I have had no probs with data from DTN since switching over." - Comment from Public Forum Post
"I have to tell you though that using the IQFeed API is about the easiest and cleanest I have seen for some time." - Comment from Jim
"It’s so nice to be working with real professionals!" - Comment from Len
"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've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
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»Forums Index »IQFeed Developer »IQFeed Developer Support
Thread Started By Replies Views Last Post
Moderators: DTN_Gary_Stephen, DTN_Steve_S
Not receiving any data from any iqconnect port Sancho 1 1312 May 24, 2018 09:47 AM
by DTN_Tim Walter
C# sample program for Leve1Socket Lav2018 5 3178 May 22, 2018 08:06 PM
by mathpaquette
Historical options data ovolansky 4 1525 May 22, 2018 01:46 PM
by jonnyb
LabelAtBeginning on Linux alex 1 1406 May 14, 2018 08:43 AM
by DTN_Tim Walter
Treasury futures show non-tradable prices in Level2 updates aQuant 2 1562 May 9, 2018 08:52 AM
by DTN_Tim Walter
Symbol suffix for 'rights' airporter 2 1388 May 3, 2018 02:07 PM
by airporter
Daily not adjusted close price ovolansky 1 1356 May 3, 2018 08:40 AM
by DTN_Tim Walter
Corrupted structure for historical data ovolansky 5 1557 May 3, 2018 02:20 AM
by ovolansky
Price change updates after market close sgill 2 1640 May 2, 2018 10:28 AM
by sgill
SPY historical jacknsa 1 1415 Apr 30, 2018 12:58 PM
by DTN_Tim Walter
Open, High, Low, Volume, Bid, BidSize, Ask, AskSize are all reset to zero outside trading hours markzielinski 4 1570 Apr 25, 2018 05:55 PM
by markzielinski
chronological order of ticks received? Lav2018 1 1518 Apr 19, 2018 04:41 AM
by DTN_Tim Walter
Error message - 11582 Could not connect to History Socket ovolansky 1 1558 Apr 18, 2018 07:17 AM
by DTN_Tim Walter
Mystery number ger579 3 1453 Apr 6, 2018 01:56 AM
by DTN_Tim Walter
Realtime vs Historical tick resolution lgwaustralia 4 1564 Apr 5, 2018 08:07 AM
by lgwaustralia
Not getting historical Tick data tester1 2 2644 Apr 4, 2018 06:58 PM
by tester1
IQFeed Maximum Messages per Second gcarleu 2 1469 Apr 4, 2018 01:18 PM
by gcarleu
Unable to get full Historical Data karthikkrishnan 1 2478 Apr 3, 2018 07:49 AM
by DTN_Jay_Froscheiser
sample code karthikkrishnan 6 2861 Apr 2, 2018 05:37 PM
by karthikkrishnan
Error on admin port ger579 4 1705 Apr 2, 2018 05:20 PM
by ger579
Duplicate Q Messages jwelch 0 2053 Mar 15, 2018 10:38 PM
by jwelch
How are derivative bars built? Lav2018 1 1706 Mar 15, 2018 10:29 AM
by DTN_Tim Walter
Asking about historical data timestamps. lgwaustralia 7 2676 Mar 6, 2018 03:21 AM
by lgwaustralia
MaxDatapoints in historical tick queries Denny 2 1575 Feb 28, 2018 06:17 PM
by Denny
All ticks Historical data requests seldom work fatdan 9 3483 Feb 25, 2018 01:27 PM
by DTN_Tim Walter
Historical early market close via API? davhol_03086 2 1621 Feb 23, 2018 06:02 AM
by DTN_Tim Walter
no data maverick 0 1701 Feb 7, 2018 01:22 PM
by maverick
Making multiple simultaneous history lookup requests bigjake 3 1908 Feb 1, 2018 11:00 AM
by DTN_Tim Walter
Cannot get iqconnet.exe to run on Ubuntu AWS Instance (import_dll Library mfc110.dll) karunkrishna 6 4897 Dec 24, 2017 07:40 PM
by karunkrishna
python proper format to request data ewnike 2 2468 Dec 19, 2017 11:20 AM
by ewnike
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