I do not know how authentic this information is. But this website shares some trading statistics.
For example" In Taiwan when they introduced the lottery, trading dropped by 25%"
One more:
"[In Taiwan] the losses of individual investors are about 2% of GDP."
I guess they must have taken some bearish years into consideration. Is this possible in bullish years?
I use the following excel sheet for position sizing.
I distributed one lakh rupees between three shares and set target prices and stop losses. SL after including transaction charges should not cross 1% of the share capital. Target is 2% of share capital after transaction charges. Transaction charges are taken at 10 paise per Rs. 100 cost of the share for the round trip.
Now look how close the stop loss is for colpal as compared to others.
It's arithmetic stupid!
learn market profile even if you don't use it to its core, you will get answers to your questions. this is my experience. whatever is your method MP will teach you how to use/read/analyze market generated information for your trading with your method/system.
BTW its extremely complex and difficult to learn.