DTN IQFeed, DTN.IQ, DTN ProphetX Support Forums

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 started a trial a few weeks back before the market went wild. DTN.IQ didn’t miss anything and beat my other provider. I decided to stay with you because of the great service through all the volatility." - Comment from Mike

"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles

"I was with ******* for 4 years at $230 a month, this is a huge savings for me, GOD BLESS YOU PEOPLE," - Comment from T.S. via Email

"I've never had DTN go out on me since switching. ******* would go down a couple times every month when I was using them." - Comment from Bryce in AL.

"Thanks for following up with me. You guys do a great job in tech support." - Comment from Phelps

"IQFeed version 4 is a real screamer compared to anything else I have seen." - Comment from Tom

"I am very happy I changed. I love the product, but more so I am thrilled with Tech Support. You are knowledgeable, polite, pleasant and professional." - Comment from Pat

"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

"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 just wanted to let you know how fast and easy I found it to integrate IQFeed into our existing Java code using your JNI client. In my experience, such things almost never go so smoothly - great job!" - Comment from Nate

Home

Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather

DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter

»Forums Index »NEW IQFEED FORUMS »IQFeed API Questions »Undocumented limit of 4000 headlines?

Author	Topic: Undocumented limit of 4000 headlines? (4 messages, Page 1 of 1)
altmany -Interested User- Posts: 73 Joined: Jul 30, 2018 IQML - IQFeed-MATLAB connector	Posted: Mar 6, 2020 05:01 AM Msg. 1 of 4 In the following headlines query, I consistently get only 4000 headlines although I requested 5000. Is 4000 an undocumented limit? NHL,,:,t,5000,, Yair Altman IQML - IQFeed-MATLAB connector https://UndocumentedMatlab.com/IQML I am not a DTN employee; my post reflects my personal opinion
DTN_Gary_Stephen -DTN Guru- Posts: 396 Joined: Jul 3, 2019	Posted: Mar 10, 2020 01:55 PM Msg. 2 of 4 Yair, That's actually not an expected behavior. I've opened an internal investigation on this. I will update this thread when I have findings. Sincerely, Gary Stephen DTN IQFeed API Support Sincerely, Gary Stephen DTN IQFeed Implementation Support Specialist
DTN_Gary_Stephen -DTN Guru- Posts: 396 Joined: Jul 3, 2019	Posted: Mar 11, 2020 01:17 PM Msg. 3 of 4 As it turns out: yes, this was an undocumented limit, but I will document it here. Limit is an optional parameter in an NHL request: NHL,[Sources],[Symbols],[XML/Text],[Limit],[Date],[RequestID] Your command above specified a limit of 5000 headlines. Here are the limits: If your request doesn't specify a Limit, the limit will be 1000. If you specify a Limit between 1000 and 4000, that will be the limit. If you specify a Limit greater than 4000, the limit is 4000. So the API actually imposes two different maximums on the number of headlines you can retrieve: 1,000 if you don't specify a Limit, and 4,000 if you do. You may also specify a limit between 1,000 and 4,000. I hope this clarifies the behavior of the news API. Sincerely, Gary Stephen DTN IQFeed Implementation Support Specialist Edited by DTN_Gary_Stephen on Mar 11, 2020 at 01:17 PM
altmany -Interested User- Posts: 73 Joined: Jul 30, 2018 IQML - IQFeed-MATLAB connector	Posted: Mar 11, 2020 02:08 PM Msg. 4 of 4 Thank you for the clarification Gary. You may wish to consider updating the official API doc page accordingly: http://www.iqfeed.net/dev/api/docs/NewsLookupviaTCPIP.cfm Yair Altman IQML - IQFeed-MATLAB connector https://UndocumentedMatlab.com/IQML I am not a DTN employee; my post reflects my personal opinion