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"Boy, probably spent a thousand hours trying to get ******* API to work right. And now two hours to have something running with IQFeed. Hmmm, guess I was pretty stupid to fight rather than switch all this time. And have gotten more customer service from you guys already than total from them… in five years." - Comment from Jim
"Everything is working amazing now. I'm already impressed with the true-tick feed of IQFeed and it's ability to support my 480 symbol layout." - Comment from Tyler via Email
"You are much better than lawyers or the phone company because you answer the phone when I call! I just love your customer service." - Comment from Isreal
"I had always used ******* but for the past 2 weeks have been trying DTN IQFeed. Customer support has been extraordinary. They call just to make sure your problem hasn't recurred." - Comment from Public Forum
"This is an excellent value, the system is generous (allowing for 500 stocks) and stable (and really is tick-by-tick), and the support is fantastic." - Comment from Shirin via Email
"As a past ******* customer(and not a happy one), IQ Feed by DTN is a much better and cheaper product with great customer support. I have had no problems at all since switching over." - Comment from Public Forum
"DTN feed was the only feed that consistently matched Bloomberg feed for BID/ASK data verification work these past years......DTN feed is a must for my supply & demand based trading using Cumulative Delta" - Comment from Public Forum Post
"IQFeed version 4 is a real screamer compared to anything else I have seen." - Comment from Tom
"DTN has never given me problems. It is incredibly stable. In fact I've occasionally lost the data feed from Interactive Brokers, but still been able to trade because I'm getting good data from DTN." - Comment from Leighton
"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
"I am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George
"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
"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
"Awesome response, as usual. It is a sincere and refreshing pleasure to do business with DTN, compared to your competition." - Comment from Ryan
"I'm very glad I switched to IQFeed. It's working perfectly with no lag, even during fast market conditions." - Comment from Andy via Email
"If you want customer service that answers the phone, your best bet is IQFeed. I cannot stop praising them or their technical support. They are always there for you, and they are quick. I have used ****** too but the best value is IQFeed." - Comment from Public Forum
"Previously I was using *******. IQFeed is WAY more economical, and for my charting needs is just as good, if not better." - Comment from Public Forum Post
"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
"I just wanted to tell you what a fine job you have been doing. While *******, from what I hear, has been down and out, off and on, IQ feed has held like a champ this week." - Comment from Shirin
"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
"Thanks for following up with me. You guys do a great job in tech support." - Comment from Phelps
"Can I get another account from you? I am tired of ******* going down so often" - Comment from George
"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
"The service is great, I see a noticeable improvement in my volume profiles over [broker]'s data feed" - Comment from Larry
"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
"The people at Nirvana have very nice things to say about your company and I can see why! Price and service is a potent combination." - Comment from Ed
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"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
"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
"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
"You have an excellent product !!!!!!" - Comment from Arely
"I am a hedge fund manager here. It’s funny, I have a Bloomberg terminal and a Bridge feed, but I still like having my DTN feed!" - Comment from Feras
"You have an excellent feed. Very few spikes for Spot Forex." - Comment from Public Forum Post
"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 was with ******* for 4 years at $230 a month, this is a huge savings for me, GOD BLESS YOU PEOPLE," - Comment from T.S. via Email
"I noticed that ******* quotes locked up shortly after the interest rate announcement yesterday while yours stayed stable." - Comment from Ron in Utah
"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
"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've never had DTN go out on me since switching. ******* would go down a couple times every month when I was using them." - Comment from Bryce in AL.
"Thank you so much - awesome feed, awesome service!" - Comment from Greg via Email
"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
"If someone needs the best quality data and backfill beyond what their broker provides at a rate that is the best in the industry, I highly recommend IQFeed." - Comment from Josh via Public Forum
"I have been using IQFeed now for a few years in MultiCharts and I have zero complaints. Very, very rare to have any data hiccups or anything at all go wrong." - Comment from Public Forum
"Thanks for all of your help. Great customer service deserves to be recognized which one the reasons I've been a customer of DTN for over 10 years!" - Comment from Stuart
"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post
"IQ feed works very well, does not have all of the normal interruptions I have grown used to on *******" - Comment from Mark
"Thank God for your Data Feed as the only Zippers I see are on my pants (LOL), and no more 200 pip spikes to mess up charts." - Comment from Spiro via Email
"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
"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
"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 would just like to say that IQFeed version 4 is running very well and I am very happy with its performance. I would also like to extend a big thanks for the fast and efficient help that I always receive. My questions and concerns are always addressed promptly. Way to go!" - Comment from Josh in CO.
"I "bracket trade" all major news releases and I have not found one lag or glitch with DTN.IQ feed. I am very comfortable with their feed under all typical news conditions (Fed releases, employment numbers, etc)." - Comment from Public Forum
"I just wanted to let you know how fast and easy I found it to integrate IQFeed into our existing Java code using your JNI client. In my experience, such things almost never go so smoothly - great job!" - Comment from Nate
"Everything is working great with the API. I love it." - Comment from Calvin
"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email
"I use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from Public Forum
"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 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
"If you are serious about your trading I would not rely on IB data for serious daytrading. Took me a while to justify the cost of IQ Feed and in the end, it's just a 2 point stop on ES. Better safe than sorry" - Comment from Public Forum
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"I started a trial a few weeks back before the market went wild. DTN.IQ didn’t miss anything and beat my other provider. I decided to stay with you because of the great service through all the volatility." - Comment from Mike
"Thanks for the great product and support. During this week of high volume trading, my QuoteTracker + IQ Feed setup never missed a beat. Also, thanks for your swiftness in responding to data issues. I was on ******* for a few years before I made the switch over early this year, and wish I had done it a long time ago." - Comment from Ken
"Just a thank you for the very helpful and prompt assistance and services. You provided me with noticeably superior service in my setup compared to a couple of other options I had looked at." - Comment from John
"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 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
"Its working FABULOUSLY for me!! Holy cow...there has been so much I've been missing lately, and with this feed and Linnsoft software...I'm in the game now." - Comment from Chris R.
"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 like you guys better than *******...much more stable and a whole lot fewer issues." - Comment from Philip
"Excellent datafeed !!!" - Comment from Arely
"It’s so nice to be working with real professionals!" - Comment from Len
"I just wanted to let u know that your data feed/service is by far the best!!! Your unfiltered tick data is excellent for reading order flow and none of your competitors delivers this quality of data!" - Comment from Peter via Email
"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
About IQFeed Support Developers
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Have a Question for Sales?
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or
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Commodity Market: ICEEC

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The symbology for a future contract is
   [FUTURE ROOT][MONTH CODE][2 DIGIT YEAR]
For example: @ESZ15 = Emini S&P 500 December 2015 Future Contract
The symbology for a future option contract is
   [FUTURE SYMBOL][P/C][STRIKE]
For example: @ESZ15C154000 = Emini S&P 500 December Call at 1540.00 strike

MONTH CODES
Jan-F    Feb-G    Mar-H    Apr-J    May-K    Jun-M   
Jul-N    Aug-Q    Sep-U    Oct-V    Nov-X    Dec-Z
· For Night/Electronic sessions, the first character is "@" (example @ES) or "Q" (example QCL).
· Replace the Month and Year code with "#" for Front Month (ie. @ES# instead of @ESZ15).
· Replace the Month and Year code with "#C" for Front Month back-adjusted history (ie. @ES#C instead of @ESZ15).
ICEEC: Records=67
Future Future Root Description Roll Rule Description
@FJ17 @F ASCI (ARGUS) APRIL 2017 Roll on expiration date
@FTJ17 @FT ASCI (ARGUS) TAS APRIL 2017 Roll on expiration date
@MECJ17 @MEC ASCI DIFF (ARGUS) APRIL 2017 Roll on expiration date
@METJ17 @MET ASCI DIFF (ARGUS) TAS APRIL 2017 Roll on expiration date
@NCFG17 @NCF NEWCASTLE COAL FEBRUARY 2017 Roll on expiration date
AAUG17 AAU ECX EUAA FEBRUARY 2017 Roll on expiration date
CERH17 CER CER MARCH 2017 Roll on expiration date
CETZ17 CET CER TAS DECEMBER 2017 Roll on expiration date
CRDJ17 CRD WTI CRUDE APRIL 2017 Roll on expiration date
CRQM17 CRQ WTI CRUDE QTR JUNE 2017 Roll on expiration date
CRYZ18 CRY WTI CRUDE YEARLY DECEMBER 2018 Roll on expiration date
EBJ17 EB BRENT CRUDE APRIL 2017 Roll 1 trading days before expiration date
EBQM17 EBQ BRENT CRUDE - QUARTERLY JUNE 2017 Roll on expiration date
EBTJ17 EBT BRENT CRUDE TAS APRIL 2017 Roll on expiration date
EBYZ18 EBY BRENT CRUDE - YEARLY DECEMBER 2018 Roll on expiration date
EFG17 EF RICHARDS BAY COAL MONTHLY FEBRUARY 2017 Roll on expiration date
EFQM17 EFQ RICHARDS BAY COAL QUARTERLY JUNE 2017 Roll on expiration date
EFSU17 EFS RICHARDS BAY COAL SEASONAL SEPTEMBER 2017 Roll on expiration date
EFYZ18 EFY RICHARDS BAY COAL YEARLY DECEMBER 2018 Roll on expiration date
ETG17 ET ROTTERDAM COAL MONTHLY FEBRUARY 2017 Roll on expiration date
ETQM17 ETQ ROTTERDAM COAL QUARTERLY JUNE 2017 Roll on expiration date
ETSU17 ETS ROTTERDAM COAL SEASONAL SEPTEMBER 2017 Roll on expiration date
ETYZ18 ETY ROTTERDAM COAL YEARLY DECEMBER 2018 Roll on expiration date
EUTZ17 EUT EUA TAS DECEMBER 2017 Roll on expiration date
FNH17 FN NATURAL GAS BALANCING POINT MARCH 2017 Roll on expiration date
FNQM17 FNQ NATURAL GAS - QUARTERLY BAL PT JUNE 2017 Roll on expiration date
FNSU17 FNS NATURAL GAS - SEASONAL BAL PT SEPTEMBER 2017 Roll on expiration date
GASH17 GAS LOW SULPHUR GAS OIL NEW MARCH 2017 Roll on expiration date
GWEH17 GWE UK NATURAL GAS MARCH 2017 Roll on expiration date
GWQM17 GWQ UK NATURAL GAS QUARTERLY JUNE 2017 Roll on expiration date
GWSU17 GWS UK NATURAL GAS SEASONAL SEPTEMBER 2017 Roll on expiration date
GWTH17 GWT NATURAL GAS BALANCING POINT TAS MARCH 2017 Roll on expiration date
GWYZ18 GWY NATURAL GAS BALANCING POINT YEARLY DECEMBER 2018 Roll on expiration date
GZYZ18 GZY UK NATURAL GAS YEARLY DECEMBER 2018 Roll on expiration date
IHOH17 IHO HEATING OIL MARCH 2017 Roll on expiration date
IHQM17 IHQ HEATING OIL QUARTERLY JUNE 2017 Roll on expiration date
IRBH17 IRB NYH (RBOB) GASOLINE MARCH 2017 Roll on expiration date
IRBTH17 IRBT NYH (RBOB) GASOLINE TAS MARCH 2017 Roll on expiration date
IRQM17 IRQ NYH (RBOB) GASOLINE QUARTERLY JUNE 2017 Roll on expiration date
LHTH17 LHT HEATING OIL-TAS MARCH 2017 Roll on expiration date
MIDJ17 MID MIDDLE EAST SOUR CRUDE APRIL 2017 Roll on expiration date
MIQM17 MIQ MIDDLE EAST SOUR CRUDE QTR JUNE 2017 Roll on expiration date
MITJ17 MIT MIDDLE EAST SOUR CRUDE TAS APRIL 2017 Roll on expiration date
MIYZ18 MIY MIDDLE EAST SOUR CRUDE YEARLY DECEMBER 2018 Roll on expiration date
NCQM17 NCQ NEWCASTLE COAL QUARTERLY JUNE 2017 Roll on expiration date
NCYZ18 NCY NEWCASTLE COAL YEARLY DECEMBER 2018 Roll on expiration date
SUBG17 SUB INDONESIA COAL FEBRUARY 2017 Roll on expiration date
SUQM17 SUQ INDONESIA COAL QUARTERLY JUNE 2017 Roll on expiration date
SUYZ18 SUY INDONESIA COAL YEARLY DECEMBER 2018 Roll on expiration date
UBLH17 UBL UK ELECTRICITY BASELOAD GREGORIAN MARCH 2017 Roll on expiration date
UBQM17 UBQ UK ELEC BASE GREGORIAN QUARTERLY JUNE 2017 Roll on expiration date
UCAH17 UCA CENTRAL APPALACHIAN COAL MARCH 2017 Roll on expiration date
UCPH17 UCP POWDER RIVER BASIN COAL MARCH 2017 Roll on expiration date
UCQM17 UCQ CENTRAL APPALACHIAN COAL QUARTERLY JUNE 2017 Roll on expiration date
UCSZ17 UCS CENTRAL APPALACHIAN COAL SEASONAL DECEMBER 2017 Roll on expiration date
UCXH17 UCX CSX COAL MARCH 2017 Roll on expiration date
UCYZ18 UCY CENTRAL APPALACHIAN COAL YEARLY DECEMBER 2018 Roll on expiration date
UPLH17 UPL UK ELECTRICITY PEAK GREGORIAN MARCH 2017 Roll on expiration date
UPQM17 UPQ POWDER RIVER BASIN COAL QUARTERLY JUNE 2017 Roll on expiration date
UPSZ17 UPS POWDER RIVER BASIN COAL SEASONAL DECEMBER 2017 Roll on expiration date
UPYZ18 UPY POWDER RIVER BASIN COAL YEARLY DECEMBER 2018 Roll on expiration date
UXH17 UX EUA MARCH 2017 Roll on expiration date
UXQM17 UXQ CSX COAL QUARTERLY JUNE 2017 Roll on expiration date
UXSZ17 UXS CSX COAL SEASONAL DECEMBER 2017 Roll on expiration date
UXYZ18 UXY CSX COAL YEARLY DECEMBER 2018 Roll on expiration date
UZQM17 UZQ UK ELECTRICITY PEAK GREGORIAN QUARTERLY JUNE 2017 Roll on expiration date
WBTJ17 WBT WTI CRUDE TAS APRIL 2017 Roll on expiration date