Instead of the RS ratio, this is the plot of the price that will make the RS ratio equal to zero, we call this the equilibrium price.
About the equilibrium price plot:
- When the plot is below the symbol price plot, it means stock is performing above the benchmark
- When the plot is above the symbol price plot, it means stock is underperforming in comparison to the benchmark
- When the plot is close (or equal) to the symbol price plot, it means that RS is near the zero line, either crossing over or crossing below
The latest equilibrium is displayed over the plot. This gives a visual and quantitative idea of how far above or below the equilibrium price is in comparison to the current price.
In the above example, we see that HDFC Bank which was performing above the benchmark (trading above equilibrium price) whipsawed a lot (price near equilibrium price), before swaying down during the COVID-19 fall in the market (price is trading below the equilibrium price) . Currently, the equilibrium price is 1136, but HDFC Bank is trading below this price at 1033, around 100 points below.