How to scan BollingerBands daily trend?

Razor_Morozumi

New member
I want to scan stock that has their BollingerBands gap is going to wider than previous day.
In other word, if BollingerBands UpperBand is going to higher than previous day value at the same time LowerBand is going to lower than previous day value that represents BollingerBands gap is stretching from previous day.
Since it is daly basis scan, actual value comparison should be the day before yesterday's result and yesterday's result.
Value itself is really not important but direction of change is the matter for representing trend.

Please teach me if we can create scan script based on comparison same parameter but different time duration such as 2 days ago compared to 1 days ago.
Can we scen such value changes over time duration?

Thank you !!
 
To filter on yesterday and day before yesterday, use the offset box highlighted below
a2.png

You can upload this scan.
Shared Scan Link: http://tos.mx/QIuBdCL Click here for --> Easiest way to load shared links

Read more here:
https://tlc.thinkorswim.com/center/...nced/Chapter-10---Referencing-Historical-Data
 

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MerryDay, thank you very much for your reply.

For having solid trend of BollingerBands gap expansion, I created 2 sets of rules (offset 0 & 1, and offset 1 & 2) on both UpperBand and Lowerband. Could be 3 sets but will see which could be optimal.

Although I am one of armatures for creating scan rules, this made me eyes wide open how robust TOS platform is.
Thank you again for your guidance that I can save much time on this.
 
MerryDay,

I have related question you may have answer for it.
In order to identify steep gap expansion between UpperBands and LowerBands over time (say compared to 2 days ago and yesterday), is there any way for setting scan parameter for catching gap ratio increasing?
For example, when we refer gap between UpperBands and LowerBands on 2 days ago and yesterday (1 day ago), can we scan stock which has more than 50% gap increasing (or any expansion ratio at least steep enough) ?

This scan is not compared indicator value directly but calculated value (gap between UpperBands value - LowerBands value).
Does TOS may offer that we can create such customized scan ?

Thank you very much in advance.
 

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