Quote from vmaiya73:
First off would like to thank MfBreakout and others who have been posting on this board. I just recently saw Mark Fisher on CNBC and after doing som research came across his book and have just started reading it.
Just a quick question please. If Fisher states to use an opening range of say 20 minutes and he gives the A/C values for this opening range how do you adjust for if you want to go to a lower time frame like a 10 minute OR? How would you know what A/C values to use ?
Thanks and great posting !!
A and C values are just reference numbers. They are calculated with 20 days of ATR. One trader can have A value of 15 ticks, another one can have 8 ticks. It really does not matter as long one uses one OR and same A and C values on a consistent basis.
Breakout traders use smaller time frame OR like 5 minutes and enough of A value to accommodate for volatility. I do not know what will be appropriate values will be for 5 minutes. You will have to test and see which one makes sense.
Mark Fisher recommended OR is 45 minutes from 8.30 to 9.15 am.
A value- 8 ticks , C = 13 ticks.
That's what i use.
However, within Fisher firm traders use all kinds of OR from 5 minutes to 30 minutes and in between. One has to find their own style.
