Does Histogram need to drop below zero, could a surprise move in fiat dollar, or other market cause a statistical upset, and a break with earlier an pattern, sure - nothing is always perfect. Also, my kind of observations are always too short to be considered of statistical/industrial strength relevance.
If low of July 12th is a forming low, then we can also draw a green which I've done. Good luck guy's.
NOT ADVICE. ALL STANDARD DISCLAIMERS APPLY. DO YOUR OWN RESEARCH.