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One
 

Registered: Aug 2002
Posts: 281

 

04-28-11 05:51 PM

I know of several charting programs that construct constant volume bars from tick data (including NinjaTrader which I use), but was wondering whether anyone knew of a charting program that will contruct constant volume bars from 1 Min. data. Thanks.

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Zr1Trader
 

Registered: Dec 2010
Posts: 1579

 

04-28-11 05:59 PM

How is that possible? Volume bars are based on volume, not time.

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One
 

Registered: Aug 2002
Posts: 281

 

04-28-11 06:11 PM

The volume bars would be constructed similarly to how they are with tick bars, using the High, Low and Close from each minute bar, instead of the tick price. As an example, starting at say 10 am, and constructing 100,000 share bars:


10:00 H: 25.00 L :24.90 C: 24.95 Vol 55,000
10:01 H: 25.10 L: 24.95 C: 25.05 Vol 25,000
10:02 H: 25.20 L: 25.00 C: 25.15 Vol 30,000

The first volume bar would be:

H: 25.20 L: 24.90 C: 25.15

and 10,000 shares from 10:02 would be swept into the next volume bar.

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nazzdack
 

Registered: Jul 2004
Posts: 8448

 

04-28-11 06:37 PM


Quote from One:
----charting programs....
----construct constant volume bars....
----1 Min. data.


1) You may be searching for a "holy grail" that you'll never, ever find.
2) 1-minute bars can be overwhelming compared to other longer timeframes.

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One
 

Registered: Aug 2002
Posts: 281

 

04-28-11 07:05 PM

Agreed. 1 min is the granularity of the data base I purchased, used to construct longer time frame charts. Unfortunately NinjaTrader (and Esig I think) seems to need tick data to construct constant volume bar charts, and I haven't found a good place for inexpensive tick data on the E-Mini S&P.

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bundlemaker
 

Registered: Sep 2001
Posts: 1524

 

04-28-11 07:21 PM

In order to construct TRUE (meaning accurate) CVB's you MUST have tick data. If you take the time to think it through, you'll easily understand why.

IQ Feed now provides up to 120 days of tick data for download. Beyond this, I know of no data provider which offers more tick data (at least not for what you might consider a reasonable price).

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