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"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
"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
"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
"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
"Awesome response, as usual. It is a sincere and refreshing pleasure to do business with DTN, compared to your competition." - Comment from Ryan
"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
"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
"I am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George
"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
"Everything is working great with the API. I love it." - Comment from Calvin
"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
"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
"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
"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
"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
"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
"Thank you so much - awesome feed, awesome service!" - Comment from Greg via Email
"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
"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
"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
"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
"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
"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.
"Excellent datafeed !!!" - Comment from Arely
"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
"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
"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
"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
"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.
"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 like you guys better than *******...much more stable and a whole lot fewer issues." - Comment from Philip
"I noticed that ******* quotes locked up shortly after the interest rate announcement yesterday while yours stayed stable." - Comment from Ron in Utah
"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
"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
"It’s so nice to be working with real professionals!" - Comment from Len
"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
"Can I get another account from you? I am tired of ******* going down so often" - Comment from George
"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
"The service is great, I see a noticeable improvement in my volume profiles over [broker]'s data feed" - Comment from Larry
"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post
"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
"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
"You have an excellent feed. Very few spikes for Spot Forex." - Comment from Public Forum Post
"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
"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 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
"Thanks for following up with me. You guys do a great job in tech support." - Comment from Phelps
"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
"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
"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
"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.
"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
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"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
"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
"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.
"IQFeed version 4 is a real screamer compared to anything else I have seen." - Comment from Tom
"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
"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
"I use IQ Feed, Great stuff as far as data analysis information, storage and retrieval is concerned." - Comment from Public Forum
"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 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
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"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
"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
"IQ feed works very well, does not have all of the normal interruptions I have grown used to on *******" - Comment from Mark
"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
"You have an excellent product !!!!!!" - Comment from Arely
"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 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
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IQFeed for Mac Installation

NOTICE: The beta version of IQFeed will only upgrade the main application (which allows 3rd party apps like MotiveWave to use the feed) and SnapQuote (one of our display apps) to 64bit so only those pieces will run on Catalina. Please contact support if you need help.


IQFeed is a windows application. As a result, we (DTN) utilize a 3rd party application called Wine to run our Windows application on macOS.

We realize this is a less convenient approach than what we have used in the past and we are exploring options towards having an integrated installer again. If you run into any issues or would like help walking through this installation, please contact our Technical Support using the chat link to the left or call our support hotline.


  • macOS Snow Leopard (10.6.3) or later
  • XQuartz 2.7.11 or newer - This is required by Wine.
  • Wine (any version, but we recommend the latest Wine Stable package).

If you have already installed any of these, there is no need to re-install them (you can skip those sections). If you do not have them, or if you wish to update them to current versions, follow the instructions below to install:

Before Starting

Before beginning this process, be aware of the following:

  • If you installed a version of IQFeed earlier or including (using the old WineBottler dmg file), this should be uninstalled before proceeding with the below instructions.
    • If you have any saved Watchlists in IQFeed, they can be brought over to the new location. Watchlists are saved in .WAT files. Just navigate to wherever the .WAT files are saved and put them in a safe location. Then, after the new install is complete, you can open the watch files from that location, or move them wherever you want to store them. DO NOT SKIP THIS STEP. If you are unsure, please contact our support group BEFORE uninstalling the previous version of IQFeed.
  • MotiveWave users will need to manually launch IQFeed before entering MotiveWave. The MotiveWave functionality to automatically launch the feed will not work properly.
    Once we again have a integrated solution we will work with MotiveWave developers to streamline this process once again.

Installing XQuartz

  1. Go to The XQuartz Homepage.
  2. Download latest .DMG file.
  3. In your browser's download area or the Downloads folder, double-click the .DMG file.
  4. Double-click XQuartz.pkg to begin the installation.
  5. Follow the prompts in the install program. Grant any permission that is requested.
  6. You may get a message "you must log out and back in to make Quartz your X11 server." Disregard this message.

Installing Wine

  1. Go to The Wine Downloads page on winehq.org for macOS.
  2. Click Installer For Wine Stable link at the top. This will download a .PKG file to your system.
  3. Double-click the .PKG file to begin the installation.
  4. Follow the prompts in the install program. Grant any permission that is requested.
    1. You may get messages that wine-mono and Gecko packages are missing. Install them.
    2. Use the "Install For All Users" option, unless you have a specific reason for doing otherwise.
    3. Check the box to enable 64-bit support. (You may not be able to disable 32-bit support, but this is OK)

Installing IQFeed

If you are installing IQFeed under Wine for the first time, follow the steps in this section. If you have a previous IQFeed install using wine, you can try these steps but if you run into errors, see our troubleshooting section.

  1. Go to The IQFeed Download page and click Download to download the latest .EXE file.
    NOTE: the command in Step 3 assumes you have downloaded this to your Downloads directory for the current user. If this is not the case, you will need to adjust the path in Step 3 accordingly.
  2. You must install IQFeed using the Terminal app in macOS. To do this:
    1. Launch the Terminal app from the Utilities (Shift + Command + U).
    2. Type the following text into Terminal:

      /Applications/Wine\ Stable.app/Contents/Resources/wine/bin/wine64 downloads/iqfeed_client_6_1_1_6.exe

      NOTE: Spacing and capitalization must match exactly as above! There is a space (not an underscore) between Wine\ and Stable.app and also a space between wine64 and downloads.
  3. The Windows install process will begin. Install IQFeed as a normal Windows install.

Manually Launching IQFeed

Ideally you will not need to launch IQFeed yourself because the software you are using with IQFeed should launch IQFeed for you. However, we understand there will be times that you need to manually launch IQFeed for whatever reason. For this purpose, we have provided a terminal shell script to accomplish this. You can find this shell script in your User directory under the filename iqconnect.sh. You can run this script either from the terminal or from the finder and you will be prompted with the IQFeed login screen to enter your IQFeed authentication credentials. You will then need to launch another app (one of the included IQFeed display apps or a 3rd party app) to provide the application credentials IQFeed needs before you will be able to connect.

  • Using Terminal
    1. Launch the Terminal app from the Utilities (Shift + Command + U).
    2. Type ./iqconnect.sh and hit enter/return. The IQFeed Login screen will appear. You can enter credentials now but the Connect button will be disabled.

      At this point, you can launch your 3rd party app and skip to step 7 or you can use one of our display apps by continuing with step 4.

    3. Locate the IQFeed icon in the status menu and secondary-click (both fingers) on it. A menu will appear.
    4. Select "Display Apps" from the menu. A sub-menu will appear.
    5. Select the application you wish to use (SnapQuote is reccomended if you are unsure).
    6. Navigate back to the IQFeed Login window and you should now be able to connect.
  • Using Finder
    1. Open Finder
    2. Navigate to your Home directory (Shift + Command + H)
    3. Control-Click iqconnect.sh and choose Open With. If Terminal is in the list, choose it and move on to Step 4. Otherwise choose Other...,
      1. A Finder window will appear. Enable All Applications.
      2. Navigate to the Utilities and select Terminal.
    4. The IQFeed Login screen will appear. You can enter credentials now but the Connect button will be disabled.

      At this point, you can launch your 3rd party app and skip to step 7 or you can use one of our display apps by continuing with step 4.

    5. Locate the IQFeed icon in the status menu and Ctrl-Click on it. A menu will appear.
    6. Select "Display Apps" from the menu. A sub-menu will appear.
    7. Select the application you wish to use (SnapQuote is reccomended if you are unsure).
    8. Navigate back to the IQFeed Login window and you should now be able to connect.

NOTE: If you are an API customer writing your own application to interface with IQFeed, please check the IQFeed API documentation page for initializing the feed


Q. What is Wine?

A. Wine is a technology that lets you run Windows programs within macOS. More technically, the makers of Wine describe it as "a compatibility layer capable of running Windows applications on POSIX-compliant operating systems", which includes macOS. For more information, see their website at winehq.org.

Q. Why do I need to install Wine to run IQFeed?

A. Unfortunately, DTN can no longer offer the WineBottler install of IQFeed. To make IQFeed work on a macOS operating system, you must install Wine, and run IQFeed under Wine.

Q. Why do I need to install XQuartz?

A. It is a pre-requisite of Wine.

Q. I already have XQuartz and/or Wine, do I need to install them again? Do I need to install them each time IQFeed releases a new version?

A. No. But it is advisable to ensure you are on the latest version of XQuartz/Wine, and update if necessary.

Q. I have the Windows operating system installed on my Mac under Boot Camp. Do I need to install Wine?

A. No. You may download, install, and run IQFeed under Windows. The installation process is the same as for any Windows computer.

Q. I use something other than Wine (e.g., Crossover) to run Windows programs under MacOS. Can I use that instead?

A. Yes, but DTN can only provide limited support if it doesn't work.

Q. What happened to the old WineBottler installer?

A. On previous IQFeed versions, through, we used a package manager called Winebottler to package Wine and IQFeed into a single, standard macOS dmg installation file. Due to conditions outside of our control, this package manager no longer works for our installations.

Q. Why does Wine show as disabled in Applications on Catalina?

wine disabled

A. As of version 5.0, Wine isn't 100% Catalina compatible yet (it's close and good enough for our needs but not 100%). The application icon that gets created in the Applications folder still launches the 32bit version of wine even when 64bit support is installed. This is also why we (DTN) had to update the instructions to use Terminal.


I have an old version of IQFeed installed:

In this scenario, it depends on which version of IQFeed you have installed and/or how Wine was installed to determine what steps to take. If you have IQFeed Version or older that was installed using the IQFeed Client dmg (winebottler version), you will need to uninstall this version by dragging the icon from the Applications folder to the trash.
If you have a version of IQFeed installed using standalone wine (similar to the above instructions) you may need to delete and recreate your WINEPREFIX directory on your machine.
This happens if you have previously installed IQFeed with a wine installation that didn't include 64bit wine support. When you attempt to install 64bit IQFeed using a 32bit WINEPREFIX, you will get this error

When I try to install Wine or IQFeed, I get an error stating that it can't be opened

installer blocked

macOS will block certain apps that ate not distributed through the app store. In this scenario, you have to create an exception for the application in your system preferences to allow the app to install. Once the app is installed, you should not have to do anything further.

  1. Navigate to System Preferences
  2. Open Security & Privacy
  3. On the General Tab you should see the wine or IQFeed installer file that you downloaded listed there. Click Open Anyway.
    open anyway

When I try to install Wine or IQFeed, I get an error stating that it isn't supported on this system.

not supported

This means you have a mis-matched version of macOS and IQFeed.
You are trying to do one of the following:

  • Install 32bit IQFeed on 64bit macOS (Catalina or newer)
  • Install 64bit IQFeed using 32bit wine on macOS Mojave or older

When I try to install IQFeed, I get an error stating Bad CPU type in executable

bad cpu type

This means you are trying to use the 32bit wine app on macOS Catalina or newer. You must use wine64 on these versions of macOS.

I only have 32bit wine installed, how do I install 64bit IQFeed?

The first step here is to re-install Wine to get 64bit support available. If you still have the original pkg you used to install wine, you can run it again and make sure to check the box for 64bit support. Following that, if you do not have any other software that uses IQFeed, you will want to remove your current 32bit WINEPREFIX. If you do have other software that uses wine (or if you aren't sure), you can skip this process and follow the instructions below for having multiple WINEPREFIX installed.

  1. A WINEPREFIX is simply a hidden directory on your machine that simulates the windows file system directory structure. To remove it you simply delete the directory.
    1. Open Finder
    2. Press Shift + Command + H to open your home directory.
    3. Press Shift + Command + . (that's a period) to show hidden files/folders.
    4. locate the .wine directory and drag it to the Trash
    5. Press Shift + Command + . to hide hidden files/folders again

I need to keep my existing WINEPREFIX. How do I install IQFeed into a new one?

To use install IQFeed into a new WINEPREFIX, you need to follow the steps outlined for Installing IQFeed above except you will put WINEPREFIX=~/.wine64 in front of the command to launch the iqfeed installation as follows:

WINEPREFIX=~/.wine64 /Applications/Wine\ Stable.app/Contents/Resources/wine/bin/wine64 downloads/iqfeed_client_6_1_1_6.exe