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"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
"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 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
"You have an excellent product !!!!!!" - Comment from Arely
"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
"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
"IQFeed version 4 is a real screamer compared to anything else I have seen." - Comment from Tom
"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post
"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
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sevteen has contributed to 4 posts out of 21190 total posts (0.02%) in 2,395 days (0.00 posts per day).

20 Most recent posts:
IQFeed Developer Support » IQFeed client update backwards compatibility Oct 24, 2017 02:44 PM (Total replies: 2)

Hi Tim,

makes sense, just wanted to verify as I could not find it in written form in the docs, maybe I overlooked though.

Anyway, this is great and thanks!

IQFeed Developer Support » IQFeed client update backwards compatibility Oct 24, 2017 10:35 AM (Total replies: 2)

Hello,

We're using client version 5.2.5.0 and it's asking to upgrade to 5.2.6.0. We're also using protocol v5.1. Will new IQFeed Client still work for protocol v5.1? In general how does IQFeed Client and protocol versioning relate to each other (if any) and how should we know if there are breaking changes in the release?

IQFeed Developer Support » Duplicate records for historical data Oct 24, 2017 10:30 AM (Total replies: 2)

Thanks Tim!

IQFeed Developer Support » Duplicate records for historical data Oct 12, 2017 03:42 AM (Total replies: 2)

We are trying to retrieve 1 hour interval historical data for several symbols, but apparently we receive records for same interval twice and this is happening for symbol HG, however for symbol BD everything looks fine. Attached you'll find the log output from our software.

Any help would be appreciated!


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