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"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
"I noticed that ******* quotes locked up shortly after the interest rate announcement yesterday while yours stayed stable." - Comment from Ron in Utah
"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 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
"This beats the pants off CQG, I am definitely switching to the ProphetX 3.0!" - Comment from Stephen
"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
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"IQFeed version 4 is a real screamer compared to anything else I have seen." - Comment from Tom
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Joined: Oct 6, 2006 10:55 AM
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markb has contributed to 6 posts out of 21191 total posts (0.03%) in 6,420 days (0.00 posts per day).

20 Most recent posts:
Data and Content Support » history class.listening to two events Oct 24, 2006 11:53 AM (Total replies: 1)

I'm using c# and com interop. I noticed that if I listen to two events that the component will throw an exception. Someone else posted about this in 2004 but there was not a response. Is there a fix for this now?

history = new DTNHISTORYLOOKUPLib.HistoryLookup2Class();
history.DayReceived += new DTNHISTORYLOOKUPLib._IHistoryLookup2Events_DayReceivedEventHandler(history_DayReceived);
.....

history.DayRequestCompleted += new DTNHISTORYLOOKUPLib._IHistoryLookup2Events_DayRequestCompletedEventHandler(history_DayRequestCompleted);

Data and Content Support » hostory retrieval Oct 24, 2006 11:09 AM (Total replies: 5)

I'm using DTNHISTORYLOOKUPLib.HistoryLookup2Class. Here is an output from my console
Requesting for DD-A
Requesting for DD-B
Requesting for DDR-F
Requesting for DDR-G
form timer running
Requesting for DDR-H
Requesting for DDR-I
Requesting for DE19
Requesting for DE22
Requesting for DE28
Requesting for DEB
Requesting for DEO.A07
Requesting for DECR09
Transaction (Process ID 53) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
Requesting for DEO.A08
Requesting for DEO.B07
form timer running
Requesting for CAST.CH20
Requesting for ADF
Requesting for CAST.CJ15
Requesting for CAST.CL23
Requesting for ADX
Requesting for DEO.C07
Requesting for DEO.D07
Requesting for DEO.E07
form timer running
Requesting for DEO.M09
form timer running
form timer running
Registering Again


I have my app register again when it stops receiving data. I asking for history back 820 days.

Data and Content Support » hostory retrieval Oct 23, 2006 01:43 PM (Total replies: 5)

using Com interface.daily request. It does not matter which symbols. Each attempt has been on a different group of symbols . After 5-20 symbol data comes back it will stop retrieving anymore.

IQFeed Developer Support » Beta releases Oct 23, 2006 11:05 AM (Total replies: 6)

I installed IQFeed Developer, BETA version 4.2.0.2 (10/20/2006) and my application stopped working. I reinstalled the previous version and everything is fine.

I did not install the Beta client. is it a requirement to install both the developer and the client for it to work?

Data and Content Support » hostory retrieval Oct 23, 2006 10:44 AM (Total replies: 5)

I am trying to fill in some history for some symbols. I am able to get back history (open/close) for maybe 5 to 22 symbols before it stops receiving. I then have to reconnect to the server and then I can proceed. I am using c# in vs 2005. no exceptions being thrown on the .NET side. I am Not using the latest Beta download. Any ideas?

Data and Content Support » symbol list Oct 9, 2006 02:33 PM (Total replies: 1)

Is there a way to list all symbols for an exchange? what is the method?


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