I am just sharing my opinion, I am not sure, how valid it will be in real trading. I have not tested it yet.
Instead of fixating ourselves on number of days like NR7,8,21 etc. cant we use some method which would measure the current volatility of a stock and compare it with past data and then simply show if a stock is going through High Volatility Regimen or Low Volatility Regimen currently.
Suppose, we take past one year worth of data for analysis. Then there would be some stock in the current market which are experiencing their Most Volatile Days currently, during the past whole year. And then there would be those stocks which are experiencing their Weakest Volatility Days currently, based on the volatility rate of their past one year data.
I think we need to ADJUST our trading approach accordingly. We should not use the same trading setup on a stock, when it is going through its most volatile phase VS when it is going through its least volatile phase, over the past one year.
It is helpful to have understanding about the current volatility regime. Because everything from “Trading Setup Selection” to “Deciding Profit Targets” to “Placement of Stop Loss” etc. gets greatly influenced by the Volatility Environment.
For example, during High Volatility Days, we need to have greater risk tolerance for our stop losses, otherwise we will get stopped out quite easily. Same is true for profit targets as well, if there is more volatility we can expect larger movement in our favor and can have wider targets. But if the overall price range itself is of 1 %, then we cannot have much bigger profit targets in such environment.
And this Volatility Phenomenon is not something which just happens Randomly, like one Big Range Day suddenly, and then complete lack of volatility for next 20 days, then again one Big Range Day and then next 30 days no major volatility. It does not happen like that. What I have noticed is when volatility picks up, within a counter "many times it happens in other counters of the same sector as well" then it tends to persist for a few days. We might not have big range days, in exact sequence, happening every day, but still, they would happen quite frequently during that particular phase. If they happen in the same direction, then we end up having a pretty good trend movement. If they happen in both direction, then we end up having a High Volatility Fight between bulls and bears, within a Bracket or Trading Range.
Can we somehow define exact rules and then do some testing to find out stocks which are in their Highest or Lowest Volatility Regimen currently ?
Thanks and regards
PS: I am sorry, if it turns out to be off topic. But I believe, it is related to the concept of NR7 in some way.