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"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
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"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
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"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.
"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
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"IQ feed works very well, does not have all of the normal interruptions I have grown used to on *******" - Comment from Mark
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Joined: May 13, 2004 01:30 PM
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bronislav has contributed to 5 posts out of 21193 total posts (0.02%) in 7,305 days (0.00 posts per day).

20 Most recent posts:
IQFeed Developer Support » Error: a version of IQConnect is already running Jul 14, 2004 08:40 AM (Total replies: 1)

I receive this message at random occasions, while trying to connect. Task Manager shows no sign of IQConnect or any other DTN module running.

I learned to work around this by rebooting the computer. But now I receive this message also on freshly booted computer! Another reboot helps, however.

Mystery.

IQFeed Developer Support » Oops, wasn't aware of all the legal nuances May 14, 2004 02:00 AM (Total replies: 2)

What if both subscriptions run on the same physical computer but in separate virtual machines (like VMWare) ? And should it be considered redistribution if only one person - the original subscriber - receives all the data?

Data and Content Support » Is there a short form the update quote message (Q) May 14, 2004 01:54 AM (Total replies: 6)

Agree with you about the majority, but even if minority (say 10%) doesn't need this data, why not give it an option to skip on bid/ask updates and save 80% of bandwidth?

There are still people in this world who connect with dial-up modem and pay $50 per gigabyte of traffic!

IQFeed Developer Support » Minute data May 13, 2004 01:52 PM (Total replies: 5)

It can be done with a little programming on your part. Buy 2 or more DTN subscription ($89/month+exchange fees for 1300 symbols), install each one on a different computer (if I get it right, IPs should be also different)

Each computer will receive 1300 symbols and forward to your main application which will merge all the streams together.

Data and Content Support » Is there a short form the update quote message (Q) May 13, 2004 01:40 PM (Total replies: 6)

Another useful bandwidth-saving option would be ability to receive only trading ticks (that is, when volume changes). Currently most ticks are bid/ask change ticks. Some applications don't require them at all.

Note that historical ticks available for download are only trading ticks, not bid/ask change ticks.


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