I look at initial risk and actual risk. Initial risk is where I initially place my SL and that, for me, is usually a logical PA stoploss. What I mean by that is, that if price gets close and takes out my SL then my premise about the trade has probally been proven wrong. I may then doubleup (if context makes sense) and go in the opposite direction of my original SL and get back my loss and perhaps some profit to boot. I prefer to generally take trades where my initial SL and PT is at least 1:1 (reward to risk).
For instance, in your chart we have been looking at I would consider that such a BO,if successful, would at least give a measured move up and maybe more. So I would measure from the point of the BO and extrapolate that upwards to give me my PT. Then I would see where I need to place my initial SL logically according to PA and see if I think it will render me a 2:1 at minimum a 1:1 . On a big BO i generally would consider that I would probally get a second leg up that would give me at least a 1:1 initial RR.
So...if I took the trade where you took it at top of large green bar (trade #1) the measured move from whence the upmove started (i.e. bottom of the range) would take my trade to top mm1 green line. That would give me a 1:1 RR. However, the
actual risk was the bottom of subsequent PB plus 1 tick that came after my entry hence my RR was more like 3:1 if I held to green MM1 mark.
If I deemed the max initial risk of trade#1 was not within my comfort level then i would wait for the PB and enter at the BO PB entry (trade#2). My initial risk would be less and more in my comfort zone and my RR more like 2:1 on blue mm2 mark and more like 5:1 if I held to the top of the chart.
Of course not taking trade #1 and waiting for a pb entry (trade#2) carries the risk that there may not be no pb right after the Trade#1 potential entry so I may miss out all together on any trade waiting on a pb.
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