Each trader sees real-time bar charts that are unique to them

[thstart]

Quote from jprad:

Ticks contain a timestamp that's created at the source. If your trading platform is ignoring that timestamp and using the internal clock to build bars then it is incredibly broken.

This is true, although I can name at least one data source not giving a time stamp.

 

[Newman]

Quote from olliescigar:

Bingo. You are on the right track! Nothing makes less sense than trading from a chart!!

LOL Thanks for laugh ET

thanks for laugh OP with your "problem"

After reading ET I truly believe 99% fail

 

[jprad]

Quote from thstart:

This is true, although I can name at least one data source not giving a time stamp.

Hey, it's your money...

 

[thstart]

Quote from jprad:

Hey, it's your money...

I tested a lot of data sources to get "reliable" data. There are too many discrepancies. Seems to me the best approach is to get them from the source I am trading. It is not without its quirks too.

 

[abattia]

Quote from jprad:

Ticks contain a timestamp that's created at the source.

Thanks, jprad

I use NinjaTrader. Here's what NT says about data feeds...
As ticks come into NinjaTrader in real-time, they are time stamped based on your local PC time if they do not already have an associated time stamp that is provided from the real-time data source. The majority of our supported brokerage feeds DO NOT time stamp ticks where most of our supported market data vendor feeds do provide time stamped ticks. NinjaTrader then builds bars based on the time stamp of the incoming tick and displays these bars in your chart in real-time.... The only way to ensure that data always looks the same is if every connectivity provider sent ticks with time stamps AND that all vendors synchronized on time stamps. Unfortunately, this is just not a reality nor plausible.

 

[thstart]

Quote from abattia:

Thanks, jprad

I use NinjaTrader. Here's what NT says about data feeds...
As ticks come into NinjaTrader in real-time, they are time stamped based on your local PC time if they do not already have an associated time stamp that is provided from the real-time data source. The majority of our supported brokerage feeds DO NOT time stamp ticks where most of our supported market data vendor feeds do provide time stamped ticks. NinjaTrader then builds bars based on the time stamp of the incoming tick and displays these bars in your chart in real-time.

That is the reason to not use "free" apps.

 

[jem]

you also have to decide if you are going to start your bars on the hour or at the open and what open?

 

[Algo_Design_Kid]

Quote from filter_sweep:

The challenge with volume or tick charts is how far back does your chart go, and at what time of the day did it start at? If two traders started their charts at different times, the close of each bar will be at a different time.

Not that I personally care cause I don't trade that way, but thought I'd point it out.

I don't exactly get what you mean?

GLOBEX reports the trades and then they show up on your cpu.

For example I didn't turn my charts on till 3:00, but it backfills all the ticks until the current tick on the current bar.

Just because you turn your cpu on in the middle of a bar doesn't mean it will start from 1 - it will start from whichever tick it is on

 

[Algo_Design_Kid]

Quote from thstart:

I tested a lot of data sources to get "reliable" data. There are too many discrepancies. Seems to me the best approach is to get them from the source I am trading. It is not without its quirks too.

DTN IQ is supposed to have the highest resolution microsecond tick by tick data. It is also pretty damn expensive from my point of view at least so you do what you can I suppose.

 

[intradaybill]

Thanks for the laughs