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"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 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"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"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post"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"Can I get another account from you? I am tired of ******* going down so often" - Comment from George"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"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 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."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.
And they describe this command: CEO,[Symbol],[Puts/Calls],[Month Codes],[Near Months],[BinaryOptions],[Filter Type],[Filter Value One],[Filter Value Two],[RequestID]<CR><LF> Request an Index or Equity Option Chain from IQFeed.