Ask Colin

Is it best to use a linear or logarithmic price scale?

It does not matter in the short term. In the long term, always use semi-logarithmic charts.

The key is the dynamic range on the chart. If it is significant, use semi-log charts.

Always use semi-log for trendline work.

I use semi-log as my default chart unless I have a specific need to use linear to see something that is clearer in that scaling.