The author and editors take ultimate responsibility for the content. The Relative Strength Index, or RSI, is a technical indicator that measures the speed and size of price changes in a security.
14 (days, weeks, or minutes) is the indicator’s most popular setting. In 1978, Welles Wilder Jr. introduced the Relative Strength Index (RSI). The RSI identifies overbought and oversold readings ...
Welles Wilder. He devised and introduced the RSI and added four more technical indicators in his book New Concepts in Technical Trading Systems. Technical analysis must have had few believers in ...