Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)




"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
"Can I get another account from you? I am tired of ******* going down so often" - Comment from George
"I used to have *******, but they are way more money for the same thing. I have had no probs with data from DTN since switching over." - Comment from Public Forum Post
"Excellent datafeed !!!" - Comment from Arely
"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
"There is no doubt that IQFeed is the best data provider. I am very satisfied with your services. And IQFeed is the only one that I would recommend to my friends. Now, most of them are using your product in China." - Comment from Zhezhe
"I've been using Neoticker RT with IQFeed for two months, and I'm very happy with both of the products (I've had IQFeed for two years with very few complaints). The service from both companies is exceptional." - Comment from Public Forum
"The people at Nirvana have very nice things to say about your company and I can see why! Price and service is a potent combination." - Comment from Ed
"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
"As a past ******* customer(and not a happy one), IQ Feed by DTN is a much better and cheaper product with great customer support. I have had no problems at all since switching over." - Comment from Public Forum
Home  Search  Register  Login  Blogs Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTN_IQFeed on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »IQFeed Developer »IQFeed Developer Support »Livefeed symb
Author Topic: Livefeed symb (6 messages, Page 1 of 1)

fredericf
-Interested User-
Posts: 13
Joined: Aug 1, 2018


Posted: Sep 19, 2018 10:39 AM          Msg. 1 of 6
Hi,

I read that we can't change symbols in order to work around the 500 symbols limitation for the live feed (which totally makes sense). Anyone happens to know how it works exactly? After unwatching a symbol, is there a delay before we can start watching another?

Also, is there a delay before Historical data is made available? Or is it available right away?

Thanks!

Frederic

fredericf
-Interested User-
Posts: 13
Joined: Aug 1, 2018


Posted: Sep 19, 2018 10:41 AM          Msg. 2 of 6
Sorry for the chopped title... I submitted the post a little too fast.

DTN_Tim Walter
-DTN Guru-
Posts: 1238
Joined: Apr 25, 2006


Posted: Sep 19, 2018 10:49 AM          Msg. 3 of 6
Good morning,

I would just say that in regards to the symbol limit, we don't actively police this behavior, but just be sensible about it, obviously if we see a million requests in a minute that is something that might raise some eyebrows, but even then I would contact you first before to discuss before taking any action on our end, unless your usage began impacted other users. There are times where accidents happen and loops go crazy, but for the most part you should be fine.

As to history, tick data is available immediately, as is minute, but daily or greater data is written upon market close, so you may have to wait on daily/weekly/monthly depending upon your needs.

Tim

DTN_Tim Walter
-DTN Guru-
Posts: 1238
Joined: Apr 25, 2006


Posted: Sep 19, 2018 12:12 PM          Msg. 4 of 6
Just one more note on this, you can upgrade your service to be able to receive up to 2500 symbols. It really just depends on what you need out of our data as to what would be best in your case. Feel free to email the developer support group though with any details of what you are trying to do and I would be happy to help advise on what approaches might work.

Tim

fredericf
-Interested User-
Posts: 13
Joined: Aug 1, 2018


Posted: Sep 20, 2018 10:11 AM          Msg. 5 of 6
Hi Tim,

Thank you for the answer.

I really like your policy and the way you enforce it. (My goal was only to learn about the constraints.)

Have a nice day.

Frederic

DTN_Tim Walter
-DTN Guru-
Posts: 1238
Joined: Apr 25, 2006


Posted: Sep 20, 2018 12:00 PM          Msg. 6 of 6
Anytime! If you have any doubt or question, feel free to reach out at anytime and we'll be sure to do whatever we can to help.

Tim
 

 

Time: Wed December 12, 2018 9:30 PM CFBB v1.2.0 16 ms.
© AderSoftware 2002-2003