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"With HUGE volume on AAPL and RIMM for 2 days, everyone in a trading room was whining about freezes, crashes and lag with *******, RealTick, TS and Cyber. InvestorRT with IQFeed was rock solid. I mean SOLID!" - Comment from Public IRC Chat
"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 noticed that ******* quotes locked up shortly after the interest rate announcement yesterday while yours stayed stable." - Comment from Ron in Utah
"Interactive Brokers tick data was inconsistent, so I have switched to using DTN exclusively. It is great to no longer have to worry about my datafeed all day long." - Comment from Philippe
"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
"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
"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.
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"It’s so nice to be working with real professionals!" - Comment from Len
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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
Symbols that trade over the weekend (Friday after hours, saturday, sunday) creeveshft 10 3335 Mar 13, 2019 03:22 PM
by DTN_Stephen
Unable to connect to Admin port afetr starting IQconnect rlt6246 3 2401 Mar 12, 2019 06:56 AM
by altmany
matlab examples apps sma202 3 3437 Mar 12, 2019 06:21 AM
by altmany
problem with receiving derivative data vladfa 0 1092 Mar 6, 2019 12:11 AM
by vladfa
How much bandwidth is needed? iq200 0 1218 Feb 26, 2019 01:28 PM
by iq200
Historical tick data issues jphiggs 3 1785 Feb 26, 2019 06:42 AM
by DTN_Steve_S
History requests are slow to fill mattgundersen 3 1898 Feb 22, 2019 05:38 AM
by DTN_Steve_S
Latency of Q messages mac 3 1751 Feb 19, 2019 08:45 AM
by DTN_Steve_S
Historical futures options daily data: what is the meaning of OHLC fields with traded volume = 0? shkim 1 1198 Feb 19, 2019 06:53 AM
by DTN_Steve_S
Problem with Open price opttrade 1 1220 Feb 19, 2019 06:50 AM
by DTN_Steve_S
Latest float fredericf 1 1165 Feb 18, 2019 02:04 PM
by DTN_Steve_S
Fundamental Data Message fredericf 3 1377 Feb 12, 2019 07:00 AM
by fredericf
Incorrect Intraday data for WY and TWLO opttrade 2 1069 Feb 7, 2019 03:04 AM
by opttrade
Incorrect L2 data for futures aQuant 3 1739 Jan 29, 2019 12:27 PM
by aQuant
Incorrect data for HOLX opttrade 2 1136 Jan 28, 2019 08:34 AM
by opttrade
Historical data request - E,Invalid server protocol version. buscq9421 2 1102 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 1196 Jan 23, 2019 05:47 AM
by shkim
CL futures: missing daily data for QCLG05 & QCLV04 shkim 1 1131 Jan 21, 2019 07:36 AM
by DTN_Stephen
Trade Aggressor Side Docent 3 1468 Jan 18, 2019 07:21 AM
by DTN_Steve_S
Novice Questions: tick or minute data, Lev2 historical, linux headless launching ChainsawDR 2 1657 Jan 7, 2019 03:18 AM
by ChainsawDR
Get underlying for a futures option homie70 3 1407 Dec 14, 2018 02:04 PM
by DTN_Steve_S
Message Contents vs Timestamps - order of ticks question cirque3 0 1129 Dec 10, 2018 07:27 PM
by cirque3
About L1 level Connection ChowWei 5 1575 Dec 5, 2018 07:55 AM
by DTN_Steve_S
Protocol 6.0 - Fieldnames Lewcifer 2 1989 Dec 1, 2018 11:41 PM
by Lewcifer
Snap Quotes Lewcifer 0 1720 Dec 1, 2018 12:03 PM
by Lewcifer
Message Content Flags opttrade 7 1277 Nov 21, 2018 06:20 AM
by opttrade
Timezone of timestamps altmany 1 1864 Nov 19, 2018 05:32 AM
by DTN_Steve_S
Consuming IQFeed APIs via C++ on Linux Jaro1337 16 4287 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 1304 Nov 15, 2018 09:58 AM
by DTN_Steve_S
History LookupError opttrade 2 1621 Nov 13, 2018 12:04 PM
by opttrade
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