Use log price scale. No stupid fish-eye-like distortion, same height on the chart represents the same % difference wether it's at the top or the bottom of the screen.
lizardlik_
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@Texofalk, if you look exclusively at the price ratio, then you are right. But if you use straight lines, triangles and other figures with straight lines on a logarithmic chart, then this is a mistake, because linearity is violated (only curves can be used).