Hello,
In IQFeed there is a difference between
sending updates futures and stocks (etfs). Futures quotes are sent 24 hours
the same way (in regular last trade field).
For stocks pre/after hour updates are not sent in regular
format, so "last" is unchanged, while there are separate fields for pre/after
market.
This is because of the fact that in the past IQFeed did not
have pre/after hours market data in the backfill for stocks. Backfill changed
but streaming data still use old
format.
Special handling for this would need to be
added.
Best
regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
Sent: Tuesday, September 30, 2008 10:00
AM
Subject: Re: [amibroker] Re: Prices
updating but not on my charts
hmmm maybe I have to set the daily time
compression to "Day/Night session times as defined above". I have it set to
"exchange time" at the moment. Set this way I get for instance the QQQQ data
updating real time exactly at 9:30 ET but the data before 9:30 are not
updated in the chart automatically. However, my Interactive Brokers
data base I have set the same way and this is updating my quotes before 9:30
ET. My IB database updates pre market, during market hours and afterhours.
IQFeed only during market hours. I'll try playing with the "daily time
compression".
regards, Ed
----- Original Message -----
Sent: Tuesday, September 30, 2008
9:43 AM
Subject: [amibroker] Re: Prices
updating but not on my charts
Ed,
What symbols are you trying to get data for...? when you say
pre -
afterhour data what exactly do you mean...? When I talk about 24
hour
prices I'm referrring to those that are traded on Globex such at
the
ES contract.
In your 'intraday setttings' what's you 'daily
time compression uses'
section set to...?
--- In amibroker@xxxxxxxxxps.com,
"Edward Pottasch" <empottasch@...>
wrote:
>
>
thanks Joseph.
>
> Anyone using IQFeed? I am not getting
pre- afterhour tick updates.
When I use force backfill the data is
there but it doesn't update
automatically outside regular market hours.
I asked IQFeed and they
say it is not on their side and that they can't
get it to work with
Amibroker also. My intraday settings are "Show 24
hours data".
>
> thanks, Ed
>
>
>
> ----- Original Message -----
> From: J. Biran
> To:
amibroker@xxxxxxxxxps.com
> Sent: Sunday, September 28, 2008 7:44 PM
> Subject: RE:
[amibroker] Re: Prices updating but not on my charts
>
>
>
> by Tomasz Janeczko
>
> the Jul 11th, 2006,
22:17
>
>
>
> The limit is not hard coded...
>
> it is here for performance reasons
>
> but
if you have hyper-fast machine you can adjust the limit by
creating the
following (DWORD) key in the
registry
\\HKEY_CURRENT_USER\Software\TJP\Broker\Settings\MaximumNumberOfBars
>
> and set it to any value you wish.
>
>
>
> --
>
> Joseph Biran
>
____________________________________________
>
>
>
> From: amibroker@xxxxxxxxxps.com
[mailto:amibroker@xxxxxxxxxps.com]
On
Behalf Of Edward Pottasch
> Sent: Sunday, September 28, 2008 2:59
AM
> To: amibroker@xxxxxxxxxps.com
>
Subject: Re: [amibroker] Re: Prices updating but not on my charts
>
>
>
> hi,
>
>
>
> you
mentioned that you get 2 years of 1-minute data backfill with
IQFeed.
How do you set the database settings to get all these data
downloaded?
Need to set "number of bars" in database settings to 300000?
>
>
>
> thanks, Ed
>
>
>
>
----- Original Message -----
>
> From: sidhartha70
>
> To: amibroker@xxxxxxxxxps.com
>
> Sent: Friday, September 26, 2008 12:04 PM
>
> Subject: [amibroker] Re: Prices updating but not on my
charts
>
>
>
> Ed,
>
> they do
update continuously.
> I've been using IQ feed for about 6 months
without a problem on this
> front.
>
> regards
>
> --- In amibroker@xxxxxxxxxps.com,
"Edward Pottasch" <empottasch@>
> wrote:
>
>
> > IQFeed data do not update outside regular market hours.
You can
> update your chart by doing a forced backfill. I am not
sure why they
> do not update continuesly.
> >
>
> regards, Ed
> >
> >
> >
> >
> > ----- Original Message -----
> > From: sidhartha70
> > To: amibroker@xxxxxxxxxps.com
> > Sent: Friday, September 26, 2008 10:44 AM
> >
Subject: [amibroker] Prices updating but not on my charts
> >
> >
> > Hi,
> >
> > I can see
prices updating in my quote window... but my charts
seem to
>
> be stuck. No prices updating. I'm looking at '24 hours' so
they
should
> > be updating.
> >
> > I've tried
closing AB down and restarting... I've tried
backfilling.
>
>
> > I'm using an IQ Feed DB.
> >
> > All
to no avail.
> >
> > Any ideas...?
> >
> > TIA
> >
>