This bold entence begins to make more sense to me. JH surely meant "PRV has been well documented as well, IN OTHER PLACES".
I am beginning to find some of them. The following comes from it :
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Pro Rata Volume is an estimate of what the Bar's final Volume will be.
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Volume begins at zero for each and every bar.
At some point within the five minute bar, you know you cannot have change because, based on current PRV, actual volume will go beyond the previous volume bar.
At some point within the five minute bar, you know you cannot have continuation because, based on current PRV, actual volume will not go beyond the previous volume bar.
At some point within the five minute bar, you know you cannot have anything but a flaw because, based on current PRV, actual volume will not go beyond the 40% level.
"At some point" means it has become a near mathematical impossibility for Volume to do what needs to be done to invalidate the current hypothesis.
You should see this phenomenon unfold within 30 seconds to 1 minute all the way up to the end of the five minute bar. Some bars will require more time (perhaps just before the close of the bar) to reach the "at some point" moment. Other bars require much less time (very early in the bar). Since mathematics dictates when this "At some point" occurs, it differs for each and every bar.
You (and the six others) appear to be saying Volume jumps back and forth between less than and greater than the previous bar - back and forth, back and forth several times within each bar, every bar.
You (and the six others) appear to be saying Volume jumps back and forth between less than and greater than the 40% level - back and forth, back and forth several times per bar, every bar.
This is not my experience -ever.
I encourage you to create a video of these Volume bars performing the behavior outlined above, so that I might ascertain whether we are discussing two different topics, or something is incorrect with your PRV calculations.
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guavaman - as Avi 8 suggested, try doing a search for PRV - you will find many links to earlier posts in this journal discussing PRV.
Pro Rated Volume is a simple method of anticipating what the total volume for a completed 5 min ES vol bar will be, as calculated DURING this 5 min period.
Consider: a five min bar begins now:
- after 30 secs, obtain the current volume reading from your charting pkg and multiply by ten. (10 X 30 sec. = 5 min, so 10 X current volume = total volume at end of 5 min) This number is an 'estimate' of what the volume for this bar WILL BE at the END of its period.
- after 1 min., multiply vol by five (5 X 1 min = 5 min)
-after 2 min, multiply vol by 2.5 (2.5 X 2 min = 5 min)
- and so on: 2.5 min vol X 2, 3 min vol X 5/3, 4 min vol X 5/4
This procedure tells you a couple things:
1. by continually comparing the latest calc. volume number against the total volume of the prev. 5 min bar, one is able to determine if the gaussian is forming as anticipated (for ex., in an upchannel, you would expect increasing black vol as price increases (think continuation)
2. one is able to detect a possible change in sentiment, if the volume of the bar is deviating from that anticipated (for ex. in an upchannel, price has reached a new high, but PRV is telling you that volume is decreasing, as compared to the prev bar - it may be a flaw, or it could be signaling a possible FTT)
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Not sure where you are at in your studies, but it's imperative to start at the beginning of this journal. and slowly build your comprehension by reading, and then reading some more Good luck ...
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The answer to guavaman is explicit.
Let's have an example .
Bar n is at 10K. And then n+1 bar begins. After 30 seconds, volume for this n+1 bar is at 1.5K. PRV would then be 1.5*10 = 15K. So after 30 seconds, I’d have PRV (n+1) > volume (n). This is defined as lock in. That’s what I understand. As it has been asked to Spyder, what if PRV evoluates in an eratic maneer and successively passes from > volume n and then to < volume n ? First of all, is that mathematically possible ?
Let’s say the bar continues to unfold, and at 1 min, PRV is calculated once more :volume is at 3K, so PRV is 3*5 = 15K, still above n volume bar and we can say PRV is increasing steady.
Then at 2min, volume is at 5K and PRV is then at 2.5*5 = 12.5K, still above prior volume bar but this time it decreases compared to prior PRV calculated.
Then, at 3min, volume is at 6K, so PRV is at 5/3 * 6 =10K which is equal to prior volume level.
Then at 4min, volume is at 7K so PRV is at 5/4* 7 = 8.75 which is now less than prior volume. At this moment, PRV says a change in trend is coming.
And at 5min, volume level is at 11K which is above prior volume level and finally, there is continuation of the trend.
The above covers every of the four points following, found in the Spyder's JH's Futures Journal :
1. The PRV holds steady -- You will see the volume bar rises through time, until it meets the high of PRV at the end of the 5 minutes.
2. The PRV rises -- The PRV starts out modestly at the beginning of the 5 minutes, and steadily increases as time passes.
3. The PRV declines -- The PRV starts out with a bang, but declines as the time passes, and ended with low volume at the end of the 5 minutes bar.
4. The PRV was eratic.
This simple example lets me see my understanding of the use/calculation of the PRV prevents me to have any certitude about the end of volume level of the current bar, which means my understanding is not correct.
However, it is said in the posts quoted above that the PRV calculation is simple. Moreover I’ve found a code to put the PVR chart on the display. Unfortunately I did not manage to ad dit to my TV charts. I pasted the code in the pine editor of TV but it says « invalid symbol » or something like this.
I have to reconsider the calculation or the use or PRV anyway.
I might add this tools seems to have an incredible power when one knows how to calculate and use it. I see it like the pivot item that links many things together, so to speak it gathers many things. Fractal levels, trading non dominant trades, which EE requires which action, volume as the leading indicator, avoiding jumping fractals, lock in concept and the fact that « when a bar does meet lock in it cannot be the last bar of the hold », and this « as you see the PRV is another significant invention. It switches trading ends of bars to trading opens of bars. This takes a lagging traders to a front running trader status. This is a big deal in making money.
This is a situation where on one fractal you are holding a profit segment. AND within that container there are faster fractals going through their routine of the pattern. Shifting trading signals to a place where they are leading indicators, only took a small tweak. The tweak is PRV. ».
It seems to be a keystone. Thus why I continue my study on it.