Quote from bearmountain:
PS. I use to think that time based charts like 5 min are my grandfathers charts and volume charts are much superior to time based. I believe brooks has carefully looked at volume charts, even back in 2007 he says volume charts are a more accurate representation of market action, but I believe there is something inherent in a 5 min chart that support his methodology?
I emailed Mr. Brooks a couple years ago about volume bar charting and I can tell you from his response that he doesn't have solid grasp of their advantages.
Let me give you a few examples.
How much action would you expect to see in a 5 minute bar chart on a slow volume Friday in the Summer before a Holiday?
Answer - not much or at least choppiness and a lot of noisy oscillations.
How much action would you expect to see in a 5 minute bar chart on a typical high volume Tuesday during earnings season?
Answer - should be pretty decent but wide range oscillations.
How much action would you expect to see in a 5 minute bar chart immediately following major news reports?
Answer - Untradeable large spikes
Now consider the same situations using Constant Volume Charting:
How much action would you expect to see in a slow intraday constant volume bar chart on a slow volume Friday in the Summer before a Holiday?
Answer - Slow consistently methodical oscillations
How much action would you expect to see in a fast intraday constant volume bar chart on a slow volume Friday in the Summer before a Holiday?
Answer - fast consistently methodical oscillations
How much action would you expect to see in a slow intraday constant volume bar chart on a typical high volume Tuesday during earnings season?
Answer - Slow consistently methodical oscillations
How much action would you expect to see in a slow intraday constant volume bar chart immediately following major news reports?
Answer - fast consistently methodical oscillations
The key is that constant volume bar charting will always give you consistently methodical oscillations regardless of the liquidity in the market. These charts are the ultimate in smoothing out your decision process regardless of your own personal system triggers.