Relative strength is a ratio of a stock price performance to a market average (index) performance. [1] It is used in technical analysis.
It is not to be confused with relative strength index.
To calculate the relative strength of a particular stock, divide the percentage change over some time period by the percentage change of a particular index over the same time period. [2]
Relative Rotation Graphs (RRG) show the relative strength and momentum of mood swings in the market compared to benchmarks. The "JdK RS-Ratio" (relative strength, RS) was developed by Julius de Kempenaer, a sellside analyst in The Netherlands. [3] [4] [5] [6]