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)

"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 am a hedge fund manager here. It’s funny, I have a Bloomberg terminal and a Bridge feed, but I still like having my DTN feed!" - Comment from Feras
"After all the anxiety I had with my previous data provider it is a relief not to have to worry about data speed and integrity." - Comment from Eamonn
"Thank you so much - awesome feed, awesome service!" - Comment from Greg via Email
"With HUGE volume on AAPL and RIMM for 2 days, everyone in a trading room was whining about freezes, crashes and lag with *******, RealTick, TS and Cyber. InvestorRT with IQFeed was rock solid. I mean SOLID!" - Comment from Public IRC Chat
"IQ feed is brilliant. The support is mind-bending. What service!" - Comment from Public Forum Post
"I like you guys better than *******...much more stable and a whole lot fewer issues." - Comment from Philip
"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
"Can I get another account from you? I am tired of ******* going down so often" - Comment from George
"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
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
Viewing User Profile for: Thelos
About Contact
Joined: Jul 12, 2019 07:34 AM
Last Post: Aug 3, 2021 07:40 PM
Last Visit: Aug 3, 2021 11:39 PM
Yahoo IM:
Post Statistics
Thelos has contributed to 17 posts out of 20421 total posts (0.08%) in 878 days (0.02 posts per day).

20 Most recent posts:
IQFeed Developer Support » 50007,No file available. why ? Aug 3, 2021 07:40 PM (Total replies: 11)

Hello Gary,

5MS still display a strike equal to 0.0012 for PMH22C12000 which is not good.

I haven't checked all the options in all the markets...other errors are possible.


IQFeed Developer Support » 50007,No file available. why ? Jul 28, 2021 01:27 PM (Total replies: 11)

Hello Gary,

The 5MS report show a wrong srikes as in


We need a reliable way to get the strikes because prices without strikes are useless.


IQFeed Developer Support » 50007,No file available. why ? Jun 16, 2021 02:51 AM (Total replies: 11)

Given the delay, we are going to assume that this bug will not be fixed. We will adapt our software accordingly.



IQFeed Developer Support » 50007,No file available. why ? Jun 14, 2021 04:31 PM (Total replies: 11)

Hi Gary,

this request FDS,9,30,20210614,55 return several lines among them those that begin with @CH22. I think a 0 is missing for all of those. for exemple, @CH22C1900 should have been @CH22C19000. since the strike of that option is 190.
I have not checked the other options (SOYBEANS, WHEAT, etc.)


IQFeed Developer Support » 50007,No file available. why ? Jun 11, 2021 02:21 AM (Total replies: 11)

Hi Gary,

I still waiting for your response regarding the Foptions strikes. This is an important problem for us that prevents us from using the feed.

We need to know the option strikes. For now we deduce them from the symbol as explained here
but it seems to me that the symbols (obtained from FDS,9,30,20210605,55) are missing a 0 at the end.

Do we have another way to get the strike of each option ?


IQFeed Developer Support » 50007,No file available. why ? Jun 8, 2021 07:30 PM (Total replies: 11)

Hi Gary,

I also noticed that the FOptions strikes maybe wrong.
For corn options (symbol @C on cbot), the request FDS,9,30,20210605,55 return a range of FOptions from @CZ21P1900 to @CZ21P14000 which means if I am not mistaken a strike from 19 to 140. But according to cme website The strikes of corn Foption is between 180 and 1090.


IQFeed Developer Support » 50007,No file available. why ? Jun 8, 2021 04:24 PM (Total replies: 11)

Hi Gary,

I am not aware of yesterday's option Chains issues.
Upon closer inspection I noticed that even the working request (2021/06/05) has a lot of missing lines. maybe the issue you're talking about.


IQFeed Developer Support » 50007,No file available. why ? Jun 8, 2021 01:18 AM (Total replies: 11)

why the command FDS,8,30,20210608,55 is returning No file available ?

The last working date is 20210605 .



Data and Content Support » Euronext data wrong Oct 7, 2019 04:37 AM (Total replies: 2)

Right now, the real time data from euronext is wrong.
All the last prices are 0. for exemple, PMZ19

please, can you fix it as soon as possible ?

Thank you
Edited by Thelos on Oct 7, 2019 at 04:48 AM

IQFeed Developer Support » FDS request bug Sep 24, 2019 02:34 AM (Total replies: 10)

Hi Garyn
now the messages ends with
2,!ENDMSG!, --> note the comma at the end


IQFeed Developer Support » FDS request bug Sep 2, 2019 09:28 AM (Total replies: 10)


here are more details about my last message.

From my C# program the following command line is executed :

var iqparams= $"-product {productId} -version {productVersion} -login {login} -password {password} -autoconnect";
Process.Start("IQConnect.exe", iqparams);

With iqfeed : IqFeed Start and when my program close Iqfeed close which is very fine.
With iqfeed : Iqfeed Start and close few seconds later with no reason. which make the not usable at all.


IQFeed Developer Support » FDS request bug Aug 29, 2019 05:18 PM (Total replies: 10)

Cannot test. the version closes few seconds after startup (I would say between 2 and 10 seconds)..


IQFeed Developer Support » where is the close price date ? Aug 20, 2019 08:43 PM (Total replies: 2)

Hello Gary,

I am working on a position keeping software. it allows user to add to his position any security from any market.
for each security in position I want to feed the software with the following informations (among ohters):
Close,settle (if applicable),date.
for exemple,
for CAQ19 :

date | close | Settle
2019-8-20 | 150.2 | 150.2
2019-8-21 | 154.2 | 154.1
2019-8-22 | 155.1 | 154.9

the date is the market local date. I mean if the market close the 2019-8-20 at 19:00:00 even if my local date at the same moment is 2019-8-19 or 2019-8-21 this must not have an impact.

these data are stored and used to valuate the position (p&l,greeks...) and to compute the Value at Risk.

there is no need for me to listen to the feed for tick by tick data. So I made a batch that takes a snapshot (subscribe/unsubscribe) nearly each hour; for each security I get the UpdateMessage, now I want to store the close and the date in my table (in case of new close).

exemple, I get this :
close= 150.2
Last Date= 2019-8-20
Last Time= 17:40:02

how to know if the close belong to 2019-8-20 or 2019-8-19 or even 2019-8-21 (in case there was no trades for 1 or 2 days) ?

Edited by Thelos on Aug 20, 2019 at 08:49 PM

IQFeed Developer Support » where is the close price date ? Aug 20, 2019 01:33 AM (Total replies: 2)


In the Update Message, what is the date of the close value (Close field) ?
For the settle there is a "Settlement Date" field but not for the Close.
Is there any logic I can apply to find the close date ?


IQFeed Developer Support » FDS request bug Aug 19, 2019 10:14 AM (Total replies: 10)

I am using the version


IQFeed Developer Support » FDS request bug Aug 19, 2019 09:53 AM (Total replies: 10)

Hello Gary,

I still can reproduce the bug every time.

When entering only FDS,8,71,20190817,4 it's working but if I enter the 3 requests after connecting as I mentioned then I get the wrong result !


IQFeed Developer Support » FDS request bug Aug 19, 2019 02:46 AM (Total replies: 10)


I use the 6.1 protocol and run the 3 folowing queries (one after the other):

the answer to the 2nd querie ends with :

3,@YMZ19P31600,"E-MINI DOW JONES $5 DECEMBER 2019 PUT 31600",,,,,,,,,,,2,12,,,0.18,42,,,,,,,,,,,,,,,,,,,,,,,20191220,,,,,,
3,@YMZ19P31700,"E-MINI DOW JONES $5 DECEMBER 2019 PUT 31700",,,,,,,,,,,2,12,,,0.18,42,,,,,,,,,,,,,,,,,,,,,,,20191220,,,,,,
3,@YMZ19P31800,"E-MINI DOW JONES $5 DECEMBER 2019 PUT 31800",,,,,,,,,,,2,12,,,0.19,42,,,,,,,,,,,,,,,,,,,,,,,20191220,,,,,,

the answer to the 3rd querie starts with :
4,@YMZ19P31900,"E-MINI DOW JONES $5 DECEMBER 2019 PUT 31900",,,,,,,,,,,2,12,,,0.19,42,,,,,,,,,Symbol,Description,PeRatio,AvgVolume,DivYield,DivAmount,DivRate,PayDate,ExDivDate,CurrentEps,EstEps,SIC,Precision,Display,GrowthPercent,FiscalYearEnd,Volatility,ListedMarket,MaturityDate,OptionRoots,CouponRate,InstitutionalPercent,YearEndClose,Beta,LEAPs,WRAPs,Assets,Liabilities,BalanceSheetDate,LongTermDebt,CommonSharesOutstanding,MarketCap,52WeekHigh,52WeekHighDate,52WeekLow,52WeekLowDate,CalHigh,CalHighDate,CalLow,CalLowDate,Expiration,LastSplit,LastSplitDate,PrevSplit,PrevSplitDate,NAICS,ShortInterest
4,CA#,"CORN NOVEMBER 2019",,,,,,,,,,,2,12,,,10.07,71,,,,,,,,,,,,,,,185,20180803,165.25,20190513,,,,,20191105,,,,,,
4,CAF20,"CORN JANUARY 2020",,,,,,,,,,,2,12,,,10.04,71,,,,,,,,,,,,,,,182.25,20190724,167.75,20190513,,,,,20200106,,,,,,
4,CAF21,"CORN JANUARY 2021",,,,,,,,,,,2,12,,,35.55,71,,,,,,,,,,,,,,,,,,,,,,,20210105,,,,,,
4,CAH20,"CORN MARCH 2020",,,,,,,,,,,2,12,,,9.55,71,,,,,,,,,,,,,,,184.25,20190724,169,20190513,,,,,20200305,,,,,,

problems :
- the header line of the 3rd request is wrong.
- it seems that some lines of the 2nd request are missing

It seems that this bug occurs if I do this just after the connection.


Time: Sun December 5, 2021 1:56 PM CFBB v1.2.0 16 ms.
© AderSoftware 2002-2003