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"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
"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 am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George
"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'm very glad I switched to IQFeed. It's working perfectly with no lag, even during fast market conditions." - Comment from Andy 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'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
"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 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
"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
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Joined: May 20, 2009 01:28 PM
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roustem has contributed to 4 posts out of 21185 total posts (0.02%) in 5,456 days (0.00 posts per day).

20 Most recent posts:
IQFeed Developer Support » Are transactions coming from the NTRF Market Center (Level 1) in real time? Jul 27, 2021 02:06 PM (Total replies: 0)

Are transactions coming from the NTRF Market Center (Level 1) in real time (compared to NASDAQ market center) ?
Here they are talking about 10 seconds:
"10-second trade reporting for all U.S. Equities"
https://www.nasdaqtrader.com/trader.aspx?id=act

IQFeed API Questions » Market center codes Jul 26, 2021 08:19 AM (Total replies: 1)

Where can I get the most up-to-date list of market center codes and their decoding ?

I found one here, but it is outdated as some of the codes that IQFeed sends are above these codes.
https://rdrr.io/cran/QuantTools/man/iqfeed.html

Data and Content Support » Best hosting solution May 21, 2009 02:48 AM (Total replies: 9)

I like dedicated server solutions, because provider will replace server withing hours, if there any problems with servers. You need to be there 7/24 so provide such service :)

Data and Content Support » Best hosting solution May 20, 2009 02:05 PM (Total replies: 9)

stargrazer:

One thing is clear - the amount of the data coming from Data Vendor to ATS are much higher than trading signals volume (in terms of bytes) from ATS to Broker.
That's why I want to be closer to DataVendor than to Broker.

But you are right - it all depends from the trading strategy and algorithms.

The first think I did was exactly same as you wrote - I've traced the route and found provider in Denver.
See the traceroute from Denver:

3 0 ms ge-6-16.car1.denver1.level3.net [4.79.81.237]

4 42 ms cosentrynet.car1.denver1.level3.net [4.53.1.18]

5 43 ms [216.58.224.150]

6 43 ms [216.58.227.118]

7 43 ms esolar4.interquote.com [66.112.148.224]

The latency from my server till my providers L3 gateway are all 0ms, then the latency bumps on the other provider’s L3 gateway IP. (see also "nsolot" remark about L3)

The only choise I see is to host with cosentry.net, but it seems they do not have dedicated server solution.


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