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 had always used ******* but for the past 2 weeks have been trying DTN IQFeed. Customer support has been extraordinary. They call just to make sure your problem hasn't recurred." - Comment from Public Forum

"I just wanted to tell you what a fine job you have been doing. While *******, from what I hear, has been down and out, off and on, IQ feed has held like a champ this week." - Comment from Shirin

"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

"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

"I just wanted to let u know that your data feed/service is by far the best!!! Your unfiltered tick data is excellent for reading order flow and none of your competitors delivers this quality of data!" - Comment from Peter via Email

"I am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George

"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'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.

"Everything is working great with the API. I love it." - Comment from Calvin

"For anyone considering using DTN.IQ for a data feed, my experience with the quality of data and the tech support has been very positive." - Comment from Public Forum

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 »Archive (2017 and earlier) »IQFeed Developer Support »Possible error in HTX functions series

Author	Topic: Possible error in HTX functions series (2 messages, Page 1 of 1)
fabiodev -Interested User- Posts: 1 Joined: Jun 12, 2018	Posted: Jun 12, 2018 09:22 AM Msg. 1 of 2 Hello, I have IQFeed API licence and I am seeing this issue in your tick by tick data: cumulative volume and total volume (as released purely by your application) are not the same. Let me explain myself better: by getting historical future contract tick by tick data using IQFeed API designed function (i.e. HTX,[Symbol],[MaxDatapoints],[DataDirection],[RequestID],[DatapointsPerSend]<CR><LF>) progessive summation of last size tick is not equal in many case to the value you provide inside Total Volume column, why ? Please, find attached ES futire contract tick by tick data so that you can replicate the issue: the issue is into the "DELTA" column when the value in it is different from zero !!! Thank you for reading and let me know please Andrea Fabio File Attached: ES_tick_data.zip (downloaded 1200 times)
DTN_Tim Walter -DTN Guru- Posts: 1238 Joined: Apr 25, 2006	Posted: Jun 18, 2018 08:03 AM Msg. 2 of 2 Good morning, The intraday values are whatever we had at the time of the trade. It is not indicative of any final values. Corrections are sent out by the exchange that add or remove volume throughout the day, adjustments or not applied to the cumulative volume numbers. Tim