In this chart I compare the two big dips of February 21st and of April 18th.
In February, the trend met support first at the 0.5 Fibonacci level, then it went up to the 0.382 level which acted as a resistance. It went then down to the 0.629 level and then back up repeating the same pattern. It formed a strong W pattern that ultimately broke the ATH.
This week's...