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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 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
"Thanks for the great product and support. During this week of high volume trading, my QuoteTracker + IQ Feed setup never missed a beat. Also, thanks for your swiftness in responding to data issues. I was on ******* for a few years before I made the switch over early this year, and wish I had done it a long time ago." - Comment from Ken
"Awesome response, as usual. It is a sincere and refreshing pleasure to do business with DTN, compared to your competition." - Comment from Ryan
"Version 4.0.0.2 has been working well for me and I appreciate that it is now a much tighter client to work with. I feel I can go to press with my own application and rely on a stable platform" - Comment from David in IA.
"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
"Everything is working amazing now. I'm already impressed with the true-tick feed of IQFeed and it's ability to support my 480 symbol layout." - Comment from Tyler via Email
"Just a quick one to say I'm very impressed so far :) The documentation for developers is excellent and I've quickly managed to get an app written to do historical downloads. The system is very robust and pretty quick considering the extent of data that's available. The support guys have been very helpful too, in combination with the forums it's been plain sailing so far!" - Comment from Adam
"Very impressed with the quality of your feed - ******* is a real donkey in comparison." - Comment from A.C. via Email
"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
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andrewm has contributed to 10 posts out of 18716 total posts (0.05%) in 1,308 days (0.01 posts per day).

20 Most recent posts:
DTNIQ Client Software Wish List » Native iqconnect (console only) for Linux May 14, 2018 01:53 AM (Total replies: 2)

Is there a linux version coming?

IQFeed Developer Support » All ticks Historical data requests seldom work Jan 20, 2018 08:43 PM (Total replies: 9)

It would be great if users could pull down historical tick data in ZIP files instead so we have a CRC check to confirm we got everything. Transfer could be simpler and faster. I might groups ticks by first letter of the symbol, listing exchange and trade date. So if you want AAPL today you'd just request A-NASDAQ-2018-01-20.zip.

IQFeed Developer Support » EOD Historical Dividend Adjustments Dec 29, 2017 10:00 PM (Total replies: 37)

Can IQ Feed even tell us the most recent date this retroactive adjustment process was employed? If we just knew that we would know that data going forward of this date can be trusted.

IQFeed Developer Support » EOD Historical Dividend Adjustments Dec 27, 2017 05:14 PM (Total replies: 37)

And I think the subject was brought up in a thread much earlier than this one. I'd hate to be the guy who thought it was a good idea to fix how some charts appeared after splits by overwriting values in the EOD historical data archive. Oops.

IQFeed Developer Support » EOD Historical Dividend Adjustments Dec 22, 2017 05:16 PM (Total replies: 37)

Ok but (correct me if I'm wrong) you don't tell people. Unless someone reads this forum thread, they'll think your data is right. But you know it's wrong. You have an obligation to disclose that, no? If you've applied some of the adjustments to some of the symbols, some of the time then you've invalidated the dataset for research purposes.
You might even open the firm up to liability for someone's losses if they allege you knowingly sold invalid data upon which they relied.

IQFeed Developer Support » EOD Historical Dividend Adjustments Dec 22, 2017 06:04 AM (Total replies: 37)

Are you able to post a list of equity symbols which have had dividends applied so at least users know which EOD prices to avoid?

Did IQ Feed not save the original unmodified prices or something?

If you change your OHLC bars to Open, High Low, Close, Adjusted Close that would be great.

I agree that it is dangerous and irresponsible to publish historical daily OHLC data without mentioning that some arbitrarily set of undisclosed symbols have been adjusted to reflect some, but not all, historical price adjustments.

DTNIQ Client Software Wish List » iqconnect.exe & iqconnect_console.exe Jun 13, 2017 04:50 PM (Total replies: 10)

If you don't want the GUI in a Linux version you could use some xserver that just discards the display updates. If the UI is text/console based or graphical should not concern the exchange.

DTNIQ Client Software Wish List » iqconnect.exe & iqconnect_console.exe Nov 10, 2016 03:50 PM (Total replies: 10)

Yes, this would be very helpful. Either a command line argument to disable the GUI or a non-GUI version of the exe. Is it coming?

IQFeed Developer Support » How should I back-fill time&sales or "trades only" data? Feb 23, 2015 01:59 PM (Total replies: 2)

I see that I can get time&sales using this command on the level1 port:

t[SYMBOL]<CR><LF>
Begins a trades only watch on a symbol for Level 1 updates.
[SYMBOL] - The symbol that you wish to receive updates on

It does not look like there is a convenient way to back-fill that data. Even if I pull in historical tick data using the HTD command on the Lookup Socket (port 9100 by default) I would need to figure out the point at which the realtime data has caught up with the historical. Am I missing some easier way to accomplish this?

Thanks

IQFeed Developer Support » IQFeed client returns "real time" ticks that are several minutes behind the market Feb 23, 2015 12:51 PM (Total replies: 8)

how are you running in on Linux? using Wine?


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