How do you choose levels to take profit on stocks making ATH's

[Sapperstien 74]

Usually we use some sort of old level of price action that acted as S/R in the past. With us being in the greatest fed induced bubble of all time and new highs being made every day how are we supposed to choose levels to take profits. The best I can come up with it fibonacci levels and 1/2,full dollar amts. Sad thing is that I already use my fibs as a gage used to outlined where my 2:1,3:1,... scale out levels would be based on my stop loss as Kyle K mentioned. 

 

 

[BBT Member 001 27]

You can use % of ATR. So if the ATR of a stock is $2.00 and it has already moved $2 in that trade, you should start scaling out. This together with RVOL can help you know when the trend might end or slow down. When RVOL starts going closer to its average, momentum is being lost. 

Aside from this i can also say use whole numbers.