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"I've been using Neoticker RT with IQFeed for two months, and I'm very happy with both of the products (I've had IQFeed for two years with very few complaints). The service from both companies is exceptional." - Comment from Public Forum
"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
"It’s so nice to be working with real professionals!" - Comment from Len
"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
"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
"After all the anxiety I had with my previous data provider it is a relief not to have to worry about data speed and integrity." - Comment from Eamonn
"Awesome response, as usual. It is a sincere and refreshing pleasure to do business with DTN, compared to your competition." - Comment from Ryan
"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
"I am very happy I changed. I love the product, but more so I am thrilled with Tech Support. You are knowledgeable, polite, pleasant and professional." - Comment from Pat
"I ran your IQFeed DDE vs. my broker vs. a level II window for some slow-moving options. I would see the level II quote change, then your feed update instantaneously. My broker's DDE, however, would take as much as 30 seconds to update. I am not chasing milliseconds, but half a minute is unacceptable." - Comment from Rob
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»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support
Thread Started By Replies Views Last Post
Moderators: DTN_Gary_Stephen, DTN_Steve_S
Problem with Open price opttrade 1 2777 Feb 19, 2019 06:50 AM
by DTN_Steve_S
Latest float fredericf 1 2716 Feb 18, 2019 02:04 PM
by DTN_Steve_S
Fundamental Data Message fredericf 3 3486 Feb 12, 2019 07:00 AM
by fredericf
Incorrect Intraday data for WY and TWLO opttrade 2 2588 Feb 7, 2019 03:04 AM
by opttrade
Incorrect L2 data for futures aQuant 3 3678 Jan 29, 2019 12:27 PM
by aQuant
Incorrect data for HOLX opttrade 2 2691 Jan 28, 2019 08:34 AM
by opttrade
Historical data request - E,Invalid server protocol version. buscq9421 2 2652 Jan 28, 2019 06:45 AM
by DTN_Steve_S
chained RBOB futures data begins 1995, but cannot access individual daily contracts before QRB shkim 2 2811 Jan 23, 2019 05:47 AM
by shkim
CL futures: missing daily data for QCLG05 & QCLV04 shkim 1 2645 Jan 21, 2019 07:36 AM
by DTN_Stephen
Trade Aggressor Side Docent 3 3134 Jan 18, 2019 07:21 AM
by DTN_Steve_S
Novice Questions: tick or minute data, Lev2 historical, linux headless launching ChainsawDR 2 4525 Jan 7, 2019 03:18 AM
by ChainsawDR
Get underlying for a futures option homie70 3 3013 Dec 14, 2018 02:04 PM
by DTN_Steve_S
Message Contents vs Timestamps - order of ticks question cirque3 0 2691 Dec 10, 2018 07:27 PM
by cirque3
About L1 level Connection ChowWei 5 3212 Dec 5, 2018 07:55 AM
by DTN_Steve_S
Snap Quotes Lewcifer 0 4651 Dec 1, 2018 12:03 PM
by Lewcifer
Message Content Flags opttrade 7 2969 Nov 21, 2018 06:20 AM
by opttrade
Consuming IQFeed APIs via C++ on Linux Jaro1337 16 7542 Nov 17, 2018 01:11 AM
by taa_dtn
Requesting 5000 data points with HDX, only getting data back 313 bars dating back to 06/2017 mattgundersen 2 2972 Nov 15, 2018 09:58 AM
by DTN_Steve_S
History LookupError opttrade 2 3786 Nov 13, 2018 12:04 PM
by opttrade
Invalid Open in L1 summary message opttrade 4 2838 Nov 13, 2018 07:57 AM
by opttrade
avoiding settlement "ticks" for futures Lav2018 3 2913 Nov 1, 2018 08:54 AM
by DTN_Steve_S
Faulty tick for CVX opttrade 2 3142 Oct 24, 2018 01:53 PM
by opttrade
Streaming / Derivative data not working opttrade 5 3557 Oct 24, 2018 01:49 AM
by opttrade
Do you support corrections of historical symbols for DAILY prices alexus 1 2666 Oct 22, 2018 02:25 PM
by DTN_Steve_S
WAL Earnings. Craig 7 5186 Oct 19, 2018 03:57 PM
by DTN_Jay_Froscheiser
Delayed Data On CLM Craig 10 3636 Oct 11, 2018 02:43 PM
by DTN_Tim Walter
No way to query historical (expired) equity option chain symbols? (Page: · 1 · 2 ) hooji 58 48562 Oct 9, 2018 08:03 AM
by veng1
In search of developer with experience working with IQFeed Richard 6 4979 Sep 25, 2018 12:27 PM
by MyDtnForums
Historical requests - speed of retrieval fredericf 4 3780 Sep 21, 2018 02:02 PM
by fredericf
Livefeed symb fredericf 5 3416 Sep 20, 2018 12:00 PM
by DTN_Tim Walter
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