Original Question: Are you always looking at log charts or only when you are drawing the clothesline profit targets?
There is no other valid chart type than a log chart to be honest. A straight line on a log chart represents a constant exponential growth (constant percentage growth rate). So when the stock price is trading along a straight line on a log chart, it means that the stock maintains it’s growth. This implies that a log stock chart helps you to easily spot any change in the growth character at a glance. It also comes in handy when you try to relate the price advance with the quarterly earnings and sales growth, both also published as a percentage growth.
The recent pandemic introduced the log chart to a wider audience as the ‘spiky’ non log charts made people freak out. At least those who are not used to look at exponential data. A virus is also spreading in exponential fashion with a specific percentage growth rate expressed by the basic reproduction number.
A log chart allows one to better see the details as the attention-grabbing exponential nature is now visually suppressed.
The same is true for stock charts.