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 am enjoying the feed very much - so superior to the broker provided feed I was previously using." - Comment from George
"You are much better than lawyers or the phone company because you answer the phone when I call! I just love your customer service." - Comment from Isreal
"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
"Thanks for all of your help. Great customer service deserves to be recognized which one the reasons I've been a customer of DTN for over 10 years!" - Comment from Stuart
"I am very pleased with the DTNIQ system for quotes and news." - Comment from Larry
"I would just like to say that IQFeed version 4 is running very well and I am very happy with its performance. I would also like to extend a big thanks for the fast and efficient help that I always receive. My questions and concerns are always addressed promptly. Way to go!" - Comment from Josh in CO.
"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
"I cannot believe what a difference it makes trading with ProphetX!" - Comment from Bruce in Los Angeles
"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
"Thanks for following up with me. You guys do a great job in tech support." - Comment from Phelps
Home  Search  Register  Login  Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTNMarkets on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »NEW IQFEED FORUMS »Data Questions »Significance of 'v' Message Type in L1 update for futures contracts
Author Topic: Significance of 'v' Message Type in L1 update for futures contracts (3 messages, Page 1 of 1)

mkvalor
-Interested User-
Posts: 25
Joined: Oct 6, 2020

Keep your tools sharp.


Posted: Aug 4, 2023 09:17 AM          Msg. 1 of 3
EDIT: Nevermind -- see the first reply below. Got fooled by the trailing comma in the Q lines.

--- Original Message -----

In the L1 feed for a futures contract below, notice that the 9th message from the bottom has Message Type 'v'. Yet I don't see a change in anything "volume-like". The bid size is the same, the ask size is the same, the most recent trade size is the same. In what sense did a "volume change" occur which could be detected in sofware consuming an L1 feed for a futures contract?

Separate issue I'll ask in a separate new topic -- no idea why I don't receive Total Volume (final field) in my L1 feed. You can see that I request it in the custom dynamic field response a the top. The documentation for the field says, "Calculated by IQConnect when not sent from servers (or provided by the exchange)". None of my L1 feeds for futures contract receive it (and I'm not currently requesting an L1 feeds for non-futures instruments to see a difference there).

--- begin sample ---
S,CURRENT UPDATE FIELDNAMES,Symbol,TickID,Message Contents,Bid Time,Bid,Bid Size,Ask Time,Ask,Ask Size,Most Recent Trade Conditions,Most Recent Trade Time,Most Recent Trade,Most Recent Trade Size,Most Recent Trade Aggressor,Tick,Total Volume
...
Q,@MNQ#,234172322,a,09:23:09.529415,15836.50,8,09:23:09.529631,15836.75,4,01,09:23:09.528964,15836.75,1,2,,227513,
Q,@MNQ#,234172322,b,09:23:09.529708,15836.50,7,09:23:09.529631,15836.75,4,01,09:23:09.528964,15836.75,1,2,,227513,
Q,@MNQ#,234172322,b,09:23:09.529709,15836.50,6,09:23:09.529631,15836.75,4,01,09:23:09.528964,15836.75,1,2,,227513,
Q,@MNQ#,234172322,b,09:23:09.529817,15836.50,5,09:23:09.529631,15836.75,4,01,09:23:09.528964,15836.75,1,2,,227513,
Q,@MNQ#,234172328,C,09:23:09.529817,15836.50,5,09:23:09.529631,15836.75,4,01,09:23:09.529877,15836.50,1,2,175,227514,
Q,@MNQ#,234172328,b,09:23:09.529877,15836.50,4,09:23:09.529631,15836.75,4,01,09:23:09.529877,15836.50,1,2,,227514,
Q,@MNQ#,234172329,C,09:23:09.529877,15836.50,4,09:23:09.529631,15836.75,4,01,09:23:09.530059,15836.50,1,2,183,227515,
Q,@MNQ#,234172329,b,09:23:09.530059,15836.50,3,09:23:09.529631,15836.75,4,01,09:23:09.530059,15836.50,1,2,,227515,
Q,@MNQ#,234172330,C,09:23:09.530059,15836.50,3,09:23:09.529631,15836.75,4,01,09:23:09.530111,15836.50,3,2,183,227518,
Q,@MNQ#,234172330,b,09:23:09.530111,15836.25,5,09:23:09.529631,15836.75,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.530111,15836.25,5,09:23:09.530460,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.530111,15836.25,5,09:23:09.531483,15836.50,2,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.530111,15836.25,5,09:23:09.531646,15836.50,3,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.530111,15836.25,5,09:23:09.531784,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.531862,15836.25,4,09:23:09.531784,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.531862,15836.25,4,09:23:09.531882,15836.50,5,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.531862,15836.25,4,09:23:09.531932,15836.50,6,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.532203,15836.25,3,09:23:09.531932,15836.50,6,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.532203,15836.25,3,09:23:09.532288,15836.50,5,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.532203,15836.25,3,09:23:09.532441,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.532722,15836.25,2,09:23:09.532441,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.532722,15836.25,2,09:23:09.532722,15836.50,5,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.532722,15836.25,2,09:23:09.532733,15836.50,6,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.532722,15836.25,2,09:23:09.532735,15836.50,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.532722,15836.25,2,09:23:09.532771,15836.50,6,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.532722,15836.25,2,09:23:09.536253,15836.50,5,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.536273,15836.25,3,09:23:09.536253,15836.50,5,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.536273,15836.25,3,09:23:09.536360,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.540764,15836.25,2,09:23:09.536360,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.540764,15836.25,2,09:23:09.540764,15836.50,5,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.540764,15836.25,2,09:23:09.586880,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.586880,15836.25,3,09:23:09.586880,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.586997,15836.25,4,09:23:09.586880,15836.50,4,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.586997,15836.25,4,09:23:09.587477,15836.50,3,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.587488,15836.25,5,09:23:09.587477,15836.50,3,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587488,15836.25,5,09:23:09.587595,15836.50,2,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.587599,15836.25,6,09:23:09.587595,15836.50,2,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587599,15836.25,6,09:23:09.587609,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.587762,15836.25,5,09:23:09.587609,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587762,15836.25,5,09:23:09.587763,15836.75,6,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.587812,15836.25,4,09:23:09.587763,15836.75,6,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.587814,15836.25,3,09:23:09.587763,15836.75,6,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587814,15836.25,3,09:23:09.587816,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587814,15836.25,3,09:23:09.587862,15836.50,2,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587814,15836.25,3,09:23:09.587916,15836.50,3,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.587998,15836.25,4,09:23:09.587916,15836.50,3,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587998,15836.25,4,09:23:09.587999,15836.50,2,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.587999,15836.25,5,09:23:09.587999,15836.50,2,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587999,15836.25,5,09:23:09.588119,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.587999,15836.25,5,09:23:09.588120,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.588161,15836.25,4,09:23:09.588120,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.588162,15836.25,3,09:23:09.588120,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.588335,15836.25,4,09:23:09.588120,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.588336,15836.25,5,09:23:09.588120,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.595870,15836.25,4,09:23:09.588120,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.595870,15836.25,4,09:23:09.595981,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.596018,15836.25,3,09:23:09.595981,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.596158,15836.25,4,09:23:09.595981,15836.50,1,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,a,09:23:09.596158,15836.25,4,09:23:09.596285,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.596285,15836.25,5,09:23:09.596285,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.596620,15836.25,6,09:23:09.596285,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.597092,15836.25,7,09:23:09.596285,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,b,09:23:09.597191,15836.25,8,09:23:09.596285,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227518,
Q,@MNQ#,234172330,v,09:23:09.597191,15836.25,8,09:23:09.596285,15836.75,7,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172330,a,09:23:09.597191,15836.25,8,09:23:09.800264,15836.75,6,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172330,a,09:23:09.597191,15836.25,8,09:23:09.800280,15836.75,5,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172330,a,09:23:09.597191,15836.25,8,09:23:09.800281,15836.75,4,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172330,b,09:23:09.800495,15836.50,1,09:23:09.800281,15836.75,4,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172330,b,09:23:09.800528,15836.50,2,09:23:09.800281,15836.75,4,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172330,a,09:23:09.800528,15836.50,2,09:23:09.800528,15836.75,3,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172330,a,09:23:09.800528,15836.50,2,09:23:09.800543,15836.75,2,01,09:23:09.530111,15836.50,3,2,,227519,
Q,@MNQ#,234172334,C,09:23:09.800528,15836.50,2,09:23:09.800543,15836.75,2,01,09:23:09.800628,15836.75,1,1,173,227520,
--- end sample ---


-Mark D. Valor
Edited by mkvalor on Aug 4, 2023 at 09:30 AM

mkvalor
-Interested User-
Posts: 25
Joined: Oct 6, 2020

Keep your tools sharp.


Posted: Aug 4, 2023 09:28 AM          Msg. 2 of 3
Ugh, nevermind -- I was fooled by the trailing comma at the end of the Quote lines to imagine I was missing the Total Volume field (empty value).

I can see now that the final field (which includes a trailing comma) is indeed the Total Volume field and that this value does change on the line with the "v" Message Type.

Thanks for your time.

-Mark D. Valor

baneslime
-Interested User-
Posts: 1
Joined: Jan 24, 2024


Posted: Jan 24, 2024 07:20 PM          Msg. 3 of 3
useful
 

 

Time: Mon April 29, 2024 2:27 PM CFBB v1.2.0 8 ms.
© AderSoftware 2002-2003