so a bullflag how does it work why does it indicate a move up and when is it invalid
so bullflag is a move up by buyers generally and then a pause in momentum while it goes sideways or down SLIGHTLY then a continuation up if it breaks out which indicates that buyers are still in control and you can join the move with them
WHEN IS IT INVALID ?
a bullflag can be invalid for many reasons and all of them summarize to the same core reason BUYERS ARE NOT IN COINTROL at least not fully enough to be confident to join with them on the move
1 is the measurement of the flag so if there is a move up of 10 and there is a pullback to 2 3 that's normal fluctuation but if there is a pullback of more then 5 which is 50% of the pole then this shows there is a strong presents of bears thus making the flag invalid
2 is volume most people learn TA by word of mouth and they miss some important parts most TA has some form of volume analysis needed but most skip that so on a bullflag you wanna see big volume on the pole ( that shows strong bulls pressure ) and weak volume on the flag up top ( that show weak bears )
now this is a small timeframe chart on bitcoin but it shows a example why volume is so important on this bullflag youll notice the volume on the pole is weak and up top on the flag there is heavy volume thus making the flag invalid and likely the whole breakout of the pennant was a bull trap
this is not financial advice my opinions and analysis only