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"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
"Version 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.
"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
"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'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
"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
"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email
"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
"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
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Viewing User Profile for: DTN_Tim Walter
About Contact
Joined: Apr 25, 2006 12:17 PM
Last Post: Aug 16, 2017 06:18 AM
Last Visit: Aug 16, 2017 06:18 AM
Location: Omaha, NE
Occupation: DTNIQ Customer Support Representative
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Post Statistics
DTN_Tim Walter has contributed to 1027 posts out of 18004 total posts (5.70%) in 4,134 days (0.25 posts per day).

20 Most recent posts:
IQFeed Developer Support » IQFeed (Datafeed) client for Linux Aug 16, 2017 06:18 AM (Total replies: 6)

The attachment was what I was looking at. I think iqconnect may already running, but not listening for some reason and when you try to relaunch it is when you are getting the error in the log. Go through your process list and kill any iqconnect.exe processes that are running (or just restart the box) and then restart iqconnect, that should resolve this case.

As to the disconnect mentioned originally, without a log showing the disconnect it is hard to say what could have happened. But, in just looking at the server logs I can see where you reconnected many times the night of the 14th and the morning of the 15th, so it appears there something going on with the connection, but I did not see any mass disconnects or reconnects during that time, so I do not believe it was a server issue.


IQFeed Developer Support » IQFeed (Datafeed) client for Linux Aug 15, 2017 07:55 AM (Total replies: 6)

This is a connection on your local machine that is failing, by default: port 9300. I would look to see if some other application is using that port and close it, or in the registry, change the value to some unused port number. It could be firewall as well I suppose, but for a local connection, it would be much less likely.

Key =

IQFeed 3rd Party Software Support » Looking for a download to ascii Aug 9, 2017 07:55 AM (Total replies: 4)

Good morning Raay,

IQFeed does not have this feature, but we are inquiring with some other teams to see if this is something that maybe they can help you with. We will let you know what we find.


Good morning,

If you would like to purchase extended tick history I would contact our sales team and ask for Jerry, I believe he has options that would meet your needs.


Data and Content Support » Symbol ITB Data Is Not Present Aug 2, 2017 08:23 AM (Total replies: 1)

Good morning,

Thanks for letting us know, we have corrected the underlying issue at this time for ITB, most fields will finish correcting upon the first trade of the day, but some may take overnight unfortunately.

Our apologies for the inconvenience,


IQFeed Developer Support » Getting started with PHP Jul 28, 2017 03:39 PM (Total replies: 2)

Good afternoon,

I don't know if anybody else has something or not, but PHP is not a language that is supported currently by our API for several reasons, exchange compliance and performance being chief among them.


Thanks for the assist on this taa daa. You are correct I think everything is working as designed here.

Though you would not get connected at all if it was firewall, and an issue where WINE was failing would look different as well. I think if you open a socket to port 9300 to hold the feed open you will see this behavior stop. As taa daa mentioned, you could also open IQ WatchQuote and you will be able to test and see that things are working as designed.


Good morning,

There was a bug in our system that was allowing these to be pulled without the appropriate permissions. But, it should be the same for tick and daily, we will look into that. But going forward, just contact our sales/service team and they can help add the CBOE indicies to your account or you can add them via the website (link below) and then things should work as expected.



Sorry for the delayed response. Unfortunately, at this time requesting each is the only way to retrieve this data. We understand that this will cause you to have to rotate through a large list and we are working on ways to improve this. But, I do not have an ETA on when that work will be completed.

However, when completed, I believe one request will give you what you are looking for. When we get to a testable point, we will email all of the active developers so you can download the beta and start using it.

I do not expect it to be soon, but it is something that we do know about and we are working to improve it. So for now, go ahead and loop through them and we'll work to get you something better as soon as we can!


IQFeed Developer Support » Fast market probelm Jun 28, 2017 11:35 AM (Total replies: 3)

Many people watch 1800 symbols without issue, so it is certainly doable. So don't worry, we can get this.

Are you printing messages to a console somewhere? If so, that is the first thing that will have to go. Other things include inserting or writing on each update, build a 1000 or so messages before doing a batch insert. Basically, anything that happens between read of the socket 1 and read of the socket 2 needs to be looked at and considered. If there is any heavy processing happening between those, you would want to move that to a separate thread.

If you have more specific questions you can also reach me at the email listed at the bottom of this page,


Data and Content Support » how to lookup weekly options symbols? Jun 28, 2017 08:40 AM (Total replies: 2)

The weekly items are included in those returns. The expiration date is included in the symbol. Here is an example of symbols for a July request on GOOG.

GOOG1707G930 July 7, 2017
GOOG1714G930 July 14, 2017
GOOG1721G930 July 21, 2017
GOOG1728G930 July 28, 2017


Good evening,

What you are looking for is not part of our API. If you would like to be able to pull in data, like that NXCore may be the way for you to go, though I am not terribly familiar with it. If you contact our sales team in the morning, they would be able to get you the details.


It is something that is on our books to add support for, but I do not have an ETA on it yet. We will definitely send out an update to all registered developers when this functionality is added.


IQFeed Developer Support » Disconnection from IQConnect.exe Jun 23, 2017 11:03 AM (Total replies: 10)

Your certainly welcome. Glad we could track it down. Best of luck.


IQFeed Developer Support » Disconnection from IQConnect.exe Jun 23, 2017 11:00 AM (Total replies: 10)

As many apps as you like can use your product ID. But, you will require two user IDs for this scenario. Exchange agreements do not allow for any single user ID to be able to access data in multiple places at the same time. So just contact our sales team and they can help set that up for you.

Edited by DTN_Tim Walter on Jun 23, 2017 at 11:01 AM

IQFeed Developer Support » Disconnection from IQConnect.exe Jun 23, 2017 10:14 AM (Total replies: 10)

It appears you are logging in on two separate machines and the second is bumping off the first.

If you are not doing this, just let us know and we will reset your password.


IQFeed Developer Support » Disconnection from IQConnect.exe Jun 23, 2017 09:45 AM (Total replies: 10)

If that is what is happening, it would be a bug that we would need to look at. But, if you can send me the log I can verify what is happening and try to re-create it. Without that, anything I could say would be a guess at best.


IQFeed Developer Support » Disconnection from IQConnect.exe Jun 23, 2017 08:05 AM (Total replies: 10)

Good morning,

The best thing that we could do to start debugging, is after the next disconnection, is to email us your log file from the Documents\DTN\IQFeed folder (before you restart). If you need any help with this just let us know.


IQFeed Developer Support » bar data questions Jun 16, 2017 08:06 AM (Total replies: 2)

Good morning,

Unfortunately, the answer to both questions would be no. You would have to build the mid from the high + low/2 to get a mid and then adjust the timestamps by subtracting the interval to have them be begin times.

Sorry, I could not be of more help,


Data and Content Support » Market symbols zip file seems to be corrupted Jun 6, 2017 08:07 AM (Total replies: 2)

Good morning, that file was automatically re-created at 4:30 this morning. Could you please try to re-pull the file? It seems to be working correctly now.

Edited by DTN_Tim Walter on Jun 6, 2017 at 08:08 AM

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